Mantises Leg loss / Autotomy

Leg loss and autotomy represent significant physical challenges for praying mantises and other mantid species kept in captivity. Autotomy refers to the deliberate self-amputation of a limb, a defensive mechanism that allows the mantis to escape from predators or free itself from dangerous situations where a leg has become trapped or injured. While this survival mechanism serves an important purpose in nature, leg loss in captive mantises often indicates underlying husbandry problems, handling injuries, or issues during the molting process that require keeper attention and environmental correction.

All species within the mantid family can experience leg loss, from commonly kept species like the Chinese mantis and European mantis to more exotic varieties such as orchid mantises, ghost mantises, and giant Asian mantises. The condition affects mantises at all life stages, though the implications and recovery potential differ dramatically between nymphs and adults. Young nymphs retain the remarkable ability to regenerate lost limbs through subsequent molts, while adult mantises that have completed their final molt cannot regrow lost appendages.

The impact of leg loss on a mantis depends heavily on which legs are affected and how many limbs have been lost. Praying mantises rely on their distinctive raptorial forelegs for capturing and holding prey, making the loss of these specialized hunting appendages particularly devastating for feeding success. Loss of middle or hind legs affects stability, climbing ability, and the mantis's capacity to position itself properly for molting. Severe leg loss involving multiple limbs can render a mantis unable to hunt, climb, or molt successfully, significantly compromising quality of life and survival.

The treatability of leg loss in mantises depends entirely on the individual's life stage and remaining molt cycles. Nymphs with several molts remaining before adulthood have excellent prospects for partial or complete limb regeneration, with the regenerated leg typically becoming more complete and functional with each successive molt. Adult mantises cannot regenerate limbs, making management focused on environmental modifications and supportive care to help the mantis adapt to its disability. With appropriate husbandry adjustments, many mantises with leg loss can continue to thrive and live out their natural lifespan, though some accommodations in feeding and enclosure setup may be necessary.

The primary causes of leg loss in captive mantises fall into several categories, with traumatic injury and molting complications being the most common. Physical trauma can occur during handling when keepers accidentally apply pressure to delicate limbs, when mantises are dropped, or when legs become caught in enclosure furnishings, mesh lids, or feeding tongs. Mantises may also sustain injuries during live feeding interactions, particularly when dealing with aggressive prey items like crickets that can bite and damage mantis limbs. Autotomy, or voluntary self-amputation, occurs when a mantis perceives its leg to be hopelessly trapped or damaged, triggering a reflexive release at a predetermined break point.

Environmental factors play a substantial role in leg loss incidents among captive mantises. Inappropriate enclosure setups with rough surfaces, sharp edges, or unsuitable climbing materials can cause leg injuries. Mesh and screen enclosure tops are particularly problematic as mantis tarsal claws can become entangled, leading to struggles that result in autotomy or traumatic amputation. Inadequate humidity levels compromise exoskeleton flexibility and can contribute to leg injuries during normal movement or molting. Temperature extremes, particularly cold conditions that slow mantis metabolism and reflexes, can lead to clumsy movements and subsequent injuries.

Husbandry-related causes encompass a wide range of keeper practices that inadvertently increase leg loss risk. Cohabitation of mantises, even temporarily, frequently results in limb injuries from cannibalistic encounters or territorial disputes. Feeding prey items that are too large or aggressive poses significant dangers, as struggling prey can damage mantis legs during capture attempts. Improper handling techniques, including grasping mantises by their legs or allowing them to jump from heights, commonly results in leg injuries. Inadequate enclosure furnishings that fail to provide appropriate grip surfaces force mantises to cling to unsuitable materials, increasing entanglement risk.

Risk factors that predispose individual mantises to leg loss include life stage, with nymphs being more vulnerable due to their smaller size and more delicate exoskeletons. The molting period represents an extremely high-risk time, as mantises hang suspended and must successfully extract all six legs from their old exoskeleton. Wild-caught mantises may arrive with existing leg damage or may be more prone to stress-induced autotomy compared to captive-bred specimens that are accustomed to human presence. Mantises that have already lost one leg are at increased risk for additional leg loss due to compensatory stress placed on remaining limbs and potential balance issues during molting.

The mechanism of autotomy in mantises involves a specialized break point located at the trochanter-femur joint, where the leg can separate cleanly with minimal hemolymph loss due to a membrane that quickly seals the wound. This evolutionary adaptation allows mantises to sacrifice a limb to escape predation while minimizing the risk of bleeding to death. In captive situations, the autotomy reflex can be triggered by entanglement, rough handling, or severe leg injuries, representing the mantis's survival instinct activating inappropriately in a captive context where the perceived threat could often be resolved through gentle intervention.

Early warning signs that a mantis may be at risk for leg loss or has sustained a leg injury include behavioral changes in movement patterns and positioning. A mantis favoring certain legs, holding a leg at an unusual angle, or showing reluctance to use a particular limb when climbing or walking indicates potential damage. Changes in hunting behavior, such as repeatedly missing prey strikes or showing hesitation before attacking, may suggest problems with raptorial forelegs. Increased time spent stationary, particularly in positions that minimize weight on specific legs, warrants closer examination for limb injuries.

Physical symptoms of leg damage prior to loss include visible wounds, discoloration, or swelling at any point along the leg. Hemolymph leakage, appearing as clear or slightly greenish fluid, indicates a break in the exoskeleton that requires immediate attention. Legs that appear bent at unnatural angles, dangle limply, or show segments that move independently from the rest of the limb have sustained serious structural damage. Darkening or blackening of leg tissue suggests necrosis and often precedes either autotomy or the need for keeper intervention. Missing tarsal segments or damaged claws, while less severe than complete leg loss, indicate traumatic injury and increased vulnerability.

Behavioral changes accompanying leg injuries extend beyond movement alterations to affect feeding and general activity levels. Mantises with leg damage often show reduced appetite due to difficulty catching and manipulating prey. Increased defensive behaviors, including threat displays when approached, may indicate pain or discomfort from injuries. Some mantises become noticeably more lethargic following leg injuries, spending extended periods motionless and showing less interest in environmental stimuli. Grooming behavior focused excessively on a particular leg area can indicate the mantis is attending to an injury or irritation.

Molting-related symptoms associated with leg loss deserve particular attention from keepers. A mantis that has recently molted with a leg that appears shorter, thinner, or differently colored than its counterparts has likely regenerated a previously lost limb. Incomplete emergence from the old exoskeleton leaving one or more legs trapped is a molting emergency that can result in leg loss if not carefully addressed. Mantises that fall during molting or complete their molt in abnormal positions frequently sustain leg injuries. Post-molt mantises with legs that fail to expand and harden properly, remaining soft or misshapen, have experienced a molt complication that may result in functional leg loss even if the limb remains attached.

Symptom progression in cases of leg injury follows a recognizable pattern when autotomy does not occur immediately. Initial injury presents with hemolymph leakage and possible behavioral changes. Over hours to days, the damaged area may darken as tissue necrosis develops. The mantis increasingly avoids using the affected limb, and the leg may begin hanging at increasingly abnormal angles as structural integrity fails. Eventually, the leg may fall off at the break point, be pulled off during movement, or in some cases, dry and remain attached as a non-functional appendage. Understanding this progression allows keepers to monitor injuries and make informed decisions about intervention.

Critical and emergency symptoms requiring immediate attention include active significant hemolymph loss from any leg wound, as mantises have limited hemolymph volume and can succumb to blood loss. A leg that is completely trapped and the mantis is actively struggling risks not only leg loss but also additional injuries and extreme stress. Multiple simultaneous leg injuries, particularly involving both raptorial forelegs, constitute an emergency affecting the mantis's ability to feed. Any leg injury occurring immediately before or during the molting process represents a crisis situation, as the mantis needs all functional legs to successfully complete and survive the molt. Signs of systemic infection following leg loss, including overall darkening, lethargy, and loss of appetite, indicate the wound site may have become contaminated and septicemia may be developing.

Visual examination forms the foundation of diagnosing leg loss and assessing associated injuries in mantises. Careful observation of the mantis in its enclosure, without handling, allows assessment of movement patterns, leg positioning, and overall mobility. Once the mantis is safely secured, close examination of the affected area reveals whether the leg was lost through clean autotomy at the natural break point or through traumatic amputation elsewhere along the limb. The wound site should be assessed for active bleeding, signs of healing, or indications of infection such as unusual discoloration or discharge. Comparison of remaining legs helps identify any additional injuries or abnormalities that may have occurred simultaneously.

Behavioral observation over time provides crucial diagnostic information about the functional impact of leg loss and the mantis's adaptation progress. Monitoring feeding success reveals whether raptorial foreleg loss has compromised hunting ability or whether the mantis can compensate. Watching the mantis climb and move through its enclosure identifies mobility limitations and fall risks. Tracking behavior changes over days and weeks following leg loss helps differentiate between temporary trauma responses and lasting behavioral alterations. Documentation through notes and photographs supports monitoring recovery and identifying any complications that develop.

Environmental parameter checking serves both diagnostic and preventive purposes when leg loss occurs. Reviewing humidity levels determines whether inadequate moisture may have contributed to molting difficulties or exoskeleton inflexibility that predisposed the mantis to injury. Temperature assessment ensures the enclosure falls within species-appropriate ranges that support normal mantis activity and reflexes. Examination of all enclosure surfaces, furnishings, and access points identifies potential entanglement hazards or sharp edges that may have caused the injury. Assessment of recent husbandry activities, including feeding, handling, and enclosure maintenance, may reveal the specific incident that resulted in leg loss.

Differential diagnosis involves distinguishing between different causes and types of leg loss to guide appropriate management. Clean loss at the trochanter-femur joint indicates autotomy, suggesting the mantis experienced a situation where it felt trapped or severely threatened. Ragged wounds or loss at other points along the leg indicate traumatic amputation from injury, predation attempt by feeder insects, or molting complications. Leg loss accompanied by other physical damage such as abdominal wounds or antenna injury suggests a more serious traumatic incident. Progressive leg deterioration followed by loss, rather than sudden loss, points to infection, necrosis from previous injury, or vascular compromise as underlying causes. Accurate diagnosis guides both immediate treatment decisions and longer-term husbandry modifications to prevent recurrence.

Environmental correction represents the crucial first step in treating mantis leg loss, as improper conditions may have contributed to the injury and could impede recovery. Immediate removal or modification of any identified entanglement hazards prevents additional leg injuries. Replacing mesh or screen enclosure tops with solid materials or covering mesh with fabric eliminates the most common entrapment risk. Adjusting humidity to appropriate species-specific levels supports wound healing and overall mantis health. Reducing enclosure height or adding additional horizontal surfaces decreases fall risk for mantises adapting to mobility changes from leg loss. Ensuring appropriate temperature ranges supports immune function and healing processes.

Supportive care for mantises with leg loss focuses on managing the immediate wound and facilitating adaptation to the disability. Fresh leg loss wounds generally seal quickly due to the autotomy mechanism, but monitoring for continued hemolymph loss is essential. If bleeding persists, applying cornstarch or flour to the wound site can help promote clotting. The mantis should be allowed to rest undisturbed in an appropriate environment, as stress impedes healing. Ensuring easy access to water through misting supports hydration without requiring the mantis to climb or move extensively. Gentle handling should be completely avoided until the wound has healed and the mantis has stabilized.

Medical treatment options for mantis leg loss are extremely limited, reflecting the broader challenge of invertebrate medicine. Unlike vertebrate patients, mantises cannot be treated with antibiotics or other medications with any established safety or efficacy protocols. If infection develops at the wound site, some keepers attempt dilute betadine or honey applications, though evidence for effectiveness is purely anecdotal. The focus remains on optimizing environmental conditions to support the mantis's natural healing capabilities rather than direct medical intervention. Consultation with veterinarians experienced in invertebrate medicine may be valuable for severe cases, though such specialists are rare and treatment options remain limited.

Quarantine protocols may be appropriate following leg loss depending on the cause and circumstances. Mantises that lost legs due to enclosure hazards should be moved to corrected housing immediately. Those that sustained injuries from prey should be isolated and offered appropriately sized pre-killed food to prevent further injury during recovery. Any mantis showing signs of potential infection should be quarantined to prevent spread to other invertebrates in a collection, though bacterial infections in mantises are not typically contagious in the traditional sense. Quarantine enclosures should be simple, easily cleaned, and set up to minimize movement requirements for the recovering mantis.

Treatment monitoring involves regular observation to assess wound healing, behavioral adaptation, and overall health status. The wound site should be checked daily for signs of proper healing, including cessation of any hemolymph loss and development of a sealed appearance, or concerning signs like spreading discoloration or discharge. Feeding success must be carefully monitored, with intervention through assisted feeding if the mantis cannot hunt independently. Mobility should gradually improve as the mantis adapts to its altered body configuration. Weight maintenance and regular feeding acceptance indicate successful recovery, while continued decline suggests complications requiring further intervention.

Recognizing when treatment is not viable remains an important aspect of responsible mantis keeping. Adult mantises that lose multiple legs, particularly both raptorial forelegs, may be unable to feed themselves even with assistance and face severe quality of life limitations. Mantises showing signs of systemic infection following leg loss that does not respond to environmental optimization have a poor prognosis. Individuals that lose legs immediately before a molt may be unable to complete the molting process successfully, and keeper intervention in molting carries high risks. In cases where a mantis cannot feed, cannot molt, or shows signs of suffering, humane euthanasia through freezing may be the most compassionate option. This decision should be made thoughtfully with consideration of the individual mantis's quality of life rather than arbitrary criteria.

Recovery timeline for mantis leg loss varies dramatically based on the individual's life stage and remaining molts. For nymphs with multiple molts before adulthood, the regeneration process begins immediately as the mantis's body prepares for the next molt. The first post-injury molt typically produces a small, partially formed replacement limb that may be significantly smaller and less functional than the original. Each subsequent molt produces a more complete regenerated leg, though it often never achieves quite the same size as the original limb. Adult mantises do not regenerate, so their recovery timeline focuses on wound healing over one to two weeks and behavioral adaptation over several weeks as they learn to compensate for the missing limb.

Post-treatment care emphasizes supporting the mantis through the recovery period while preventing additional injuries. Maintaining optimal environmental conditions becomes even more critical during recovery, with particular attention to humidity levels that support molting success for regenerating nymphs. Feeding management may need adjustment, with some mantises requiring smaller prey items, pre-killed prey, or tong-feeding assistance until they adapt to hunting with remaining limbs. Handling should be minimized or eliminated during recovery to prevent stress and additional injury risk. Regular observation allows early detection of any complications while minimizing disturbance to the recovering mantis.

Prognosis factors that influence recovery outcomes include the number and type of legs lost, with single leg loss carrying a much better prognosis than multiple leg loss. Loss of mid or hind legs generally has less impact on survival than loss of raptorial forelegs essential for hunting. The mantis's age and remaining molts determine regeneration potential, with young nymphs having the best prospects. Overall health status at the time of injury affects healing capacity, with well-nourished mantises in optimal conditions recovering more successfully. The cause of leg loss also matters, as injuries from clean autotomy heal more readily than ragged traumatic wounds that may be prone to infection.

Long-term considerations for mantises that have experienced leg loss include permanent adaptations that may be necessary throughout the mantis's remaining life. Some mantises adapt remarkably well to missing limbs, developing compensatory hunting strategies and movement patterns that allow them to thrive. Others may require ongoing feeding assistance or environmental modifications to maintain quality of life. Keepers should document the individual mantis's capabilities and limitations to ensure consistent appropriate care. For breeding programs, decisions about whether to breed mantises with congenital defects that might predispose to leg loss should be considered, though most leg loss is environmentally caused and not heritable. Recognition that some mantises may have shortened lifespans following significant leg loss allows keepers to prioritize quality of life for the time remaining.

Proper husbandry forms the foundation of leg loss prevention in captive mantises. Species-appropriate enclosure sizing provides adequate space for movement and molting while not being so large that the mantis struggles to find food or falls excessive distances. Appropriate substrate depth and type supports natural behaviors without creating entanglement risks. Furnishings should provide ample climbing surfaces with appropriate grip while avoiding materials that can trap tarsal claws. Regular enclosure maintenance removes shed exoskeletons, prey remains, and waste that could harbor harmful bacteria or create hygiene issues affecting overall health. Understanding species-specific requirements ensures each mantis receives care tailored to its natural history and needs.

Environmental control prevents many of the conditions that predispose mantises to leg injuries and loss. Maintaining appropriate humidity levels, typically between sixty and eighty percent for most species, ensures exoskeleton flexibility and successful molting. Temperature should be maintained within species-appropriate ranges, avoiding extremes that impair mantis reflexes and coordination. Ventilation prevents stagnant conditions while maintaining humidity, and cross-mesh ventilation designs should be covered or modified to prevent leg entanglement. Lighting should follow natural photoperiods without excessive heat from bulbs placed too close to enclosure surfaces. Regular monitoring with appropriate thermometers and hygrometers allows early detection and correction of environmental drift.

Quarantine protocols for new specimens protect both the new mantis and existing collection members. All new mantises should be housed separately for a minimum of two weeks while being observed for health issues including leg abnormalities or injuries. Quarantine enclosures should be simple and designed to minimize injury risk while the keeper assesses the new individual's behavior and needs. Wild-caught mantises require particular attention as they may arrive with existing injuries, parasites, or stress that increases leg loss risk. Gradually transitioning mantises to permanent enclosures after quarantine allows observation of their response to new environments and furnishings.

Stress reduction plays a vital role in preventing leg loss, particularly autotomy triggered by perceived threats. Minimizing handling reduces both direct injury risk and stress that can trigger defensive autotomy. Locating enclosures away from high-traffic areas, loud noises, and vibrations decreases environmental stressors. Avoiding cohabitation eliminates the most significant source of mantis-on-mantis injuries. Providing appropriate hide spots and visual barriers gives mantises security and reduces stress from perceived predator presence. Feeding appropriately sized prey items prevents struggles with oversized or aggressive prey that can cause injuries. Maintaining consistent routines for feeding and maintenance reduces startle responses and associated injury risks.

Preventive monitoring enables early intervention before minor issues progress to leg loss. Regular visual inspection of all mantises identifies injuries in early stages when intervention may prevent limb loss. Observation of movement patterns and hunting behavior reveals subtle changes that may indicate developing problems. Monitoring molt cycles and recognizing pre-molt signs allows preparation of optimal molting conditions. Tracking individual mantis histories, including any previous injuries or close calls, identifies individuals that may need modified care. Creating a regular observation schedule ensures that problems are caught early even in larger collections where individual attention may be challenging to maintain.

Enclosure maintenance for mantises, particularly those that have experienced or are at risk for leg loss, requires careful attention to creating safe environments. Regular inspection of all enclosure surfaces identifies developing hazards before they cause injuries. Mesh and screen materials should be covered or replaced with solid materials or fine fabric that prevents tarsal entanglement. All furnishings should be checked for stability, sharp edges, and appropriate surface texture for mantis grip. Cleaning schedules should maintain hygiene while minimizing disturbance to the mantis, with spot cleaning preferred over complete enclosure breakdowns that stress the animal and increase handling-related injury risk. Water dishes if used should be shallow or contain materials that allow easy escape to prevent drowning of mobility-impaired individuals.

Environmental parameters must be maintained within appropriate ranges consistently, with particular attention during vulnerable periods. Temperature monitoring ensures enclosures remain within species-specific requirements, typically between seventy and eighty-five degrees Fahrenheit for most commonly kept species. Humidity should be maintained through regular misting, with frequency adjusted based on enclosure ventilation and ambient conditions. For mantises that have lost legs and have reduced mobility, ensuring that humid areas are accessible without extensive climbing becomes important. Seasonal adjustments may be necessary as ambient conditions change, with particular attention during winter when heating systems can significantly reduce humidity levels.

Feeding and nutrition management directly impacts leg loss risk and recovery success. Prey items should be appropriately sized, generally no larger than the mantis's head to prevent struggles that can cause injuries. Removing uneaten prey items prevents attacks on molting mantises and reduces injuries from aggressive feeder insects. For mantises with leg loss affecting hunting ability, prey may need to be pre-killed, offered on feeding tongs, or otherwise assisted to ensure adequate nutrition. Nutritious prey items, particularly gut-loaded insects, support overall health and recovery from injuries. Feeding frequency should be appropriate to species, age, and individual condition, with gravid females and recovering individuals sometimes requiring more frequent meals.

Handling considerations for mantis keepers should emphasize minimal contact to reduce injury risk. When handling is necessary, allowing the mantis to walk onto a flat hand rather than grasping prevents leg injuries from squeezing. Handling should occur only over soft surfaces to minimize injury if the mantis falls or jumps. Mantises should never be grasped by their legs, as this can trigger autotomy or cause traumatic injury. Keepers should avoid handling mantises during the pre-molt period when they are most vulnerable and least mobile. Any handling of mantises that have already lost legs should be extremely limited and gentle to prevent additional losses.

Long-term health monitoring enables proactive management that prevents leg loss and ensures early response to any injuries. Maintaining records for each mantis, including molt dates, feeding records, and any health observations, creates a baseline for recognizing changes. Photographic documentation at regular intervals and after molts provides objective records of leg condition and any regeneration progress. Tracking behavior patterns identifies changes that may indicate developing problems before physical symptoms appear. Regular assessment of enclosure conditions ensures maintenance of appropriate parameters over time. Building relationships with other experienced keepers or veterinarians familiar with invertebrates provides resources for consultation when concerning symptoms develop.

High-risk species and groups within the mantid family include those with specialized body plans or environmental requirements that complicate care. Flower mantises, including orchid mantises and spiny flower mantises, have delicate limbs adapted for ambush hunting among vegetation and may be more prone to leg damage from inappropriate furnishings or handling. Leaf and bark mantises with flattened body shapes face increased risk of leg entanglement in mesh enclosures. Giant species like the giant Asian mantis or African mantis have greater body mass that increases injury severity from falls and requires more robust climbing surfaces. Species from specific habitats, such as ground-dwelling mantises, have different needs than arboreal species and may be at increased risk when housed in inappropriate enclosure configurations.

Sensitivity versus hardiness varies significantly among commonly kept mantis species regarding leg loss risk and recovery. Hardy species like the Chinese mantis and Carolina mantis tend to tolerate a wider range of conditions and may be more robust against minor injuries. Ghost mantises, while popular for their manageable size, have very thin limbs that are vulnerable to damage. Dead leaf mantises and violin mantises have extremely delicate appendages that require careful husbandry to protect. Species that are particularly active or prone to jumping, such as some Hierodula species, face increased injury risk from impacts. Captive-bred mantises from established breeding programs tend to be hardier than wild-caught specimens that may arrive stressed and more vulnerable.

Life stage considerations significantly impact leg loss risk and consequences across all mantis species. Early instar nymphs are extremely delicate and prone to injury from environmental hazards, handling, and prey items, but they also have the greatest regeneration potential with many molts remaining. Mid-stage nymphs face particular risk as they are large enough to tackle larger prey that may cause injuries but still have fragile exoskeletons compared to adults. Sub-adult and adult mantises face the most severe consequences from leg loss as regeneration potential is limited or absent. The pre-molt period represents the highest-risk time regardless of species, as mantises become less mobile, stop feeding, and must successfully hang and extract all limbs from the old exoskeleton. Female mantises carrying oothecae have additional weight that can affect mobility and increase fall risk, requiring extra attention to enclosure safety during this period.

Commonly co-occurring conditions with leg loss often develop as complications or share underlying causes. Molting complications frequently accompany or follow leg loss, as missing limbs can interfere with the physical process of shedding the exoskeleton. Infection at the wound site, while relatively uncommon in mantises, can develop when leg loss occurs in unsanitary conditions or when the wound fails to seal properly. Dehydration may develop when mantises with mobility limitations cannot access water sources or properly groom to absorb moisture from misting. Nutritional deficiency can follow leg loss when mantises cannot hunt effectively and experience reduced food intake over extended periods. Stress-related conditions may persist following traumatic leg loss, manifesting as behavioral changes and reduced immune function.

Conditions with similar symptoms to leg loss or that may be confused with it include several mantis health issues. Limb paralysis from neurological damage or toxin exposure can cause a leg to appear non-functional without actual loss. Severe molt complications can leave legs damaged, deformed, or non-functional while still attached to the mantis's body. Leg injuries short of complete loss may present with similar behavioral changes as the mantis protects and favors the damaged limb. Hemolymph loss from other wounds may be mistaken for leg loss injuries when the actual wound site is elsewhere on the body. Age-related mobility decline in elderly mantises may be mistaken for leg problems when the underlying cause is general senescence.

Complications that can develop following leg loss require ongoing monitoring and management. Chronic balance and mobility issues may persist even after wound healing, affecting the mantis's ability to hunt, climb, and molt successfully. Compensatory injury to remaining legs can occur as the mantis overuses other limbs to make up for the lost one. Failed molting in subsequent molts may occur if the leg loss affects the mantis's ability to properly position and extract itself from the old exoskeleton. Chronic stress from disability can suppress immune function and make the mantis more vulnerable to other health issues. Secondary leg loss may occur if underlying husbandry issues that contributed to the original loss are not corrected, or if the mantis's altered movement patterns create new entanglement risks.