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Self-amputation
Autotomy ('self-amputation', from the Ancient Greek auto-, "self-" and tome, "severing") is the behaviour whereby an animal sheds or discards an appendage
Autotomy
Ejection of internal organs by animals as a defensive strategy
Evisceration is a method of autotomy involving the ejection of internal organs used by animals as a defensive strategy. Sea cucumbers (Holothuroidea) eject
Evisceration_(autotomy)
through autotomy of arms. In fission, the central disc breaks into two pieces and each portion then regenerates the missing parts. In autotomy, an arm
Asexual reproduction in starfish
Asexual_reproduction_in_starfish
Order of arachnids
after direct or indirect contact, including thanatosis, freezing, bobbing, autotomy, fleeing, stridulation, retaliation and chemical secretions. Some animals
Opiliones
Informal group of reptiles
antipredator adaptations, including running and climbing, venom, camouflage, tail autotomy, and reflex bleeding. Lizards exploit a variety of different camouflage
Lizard
Species of lizard
been reported with duplicated or forked tails, presumably following an autotomy. Taxonomy for the western fence lizard has been under much debate. S. occidentalis
Western_fence_lizard
Star-shaped organisms
starfish as single arms are often removed by predators or shed through autotomy. Crown-of-thorns starfish (Acanthaster planci), which feed on large swaths
Starfish_regeneration
include reduced use of an affected area such as limping, rubbing, holding or autotomy Has opioid receptors and shows reduced responses to noxious stimuli when
Pain_in_invertebrates
Genus of spiders
of insects have been observed to parasitise the egg sacs. Argiope use autotomy – restricting blood flow to one of their own legs until it falls off –
Argiope_(spider)
Species of reptile
relaxed position. Like most geckos, leopard geckos have an ability called autotomy: the ability to "drop" their tail and regrow them. After detachment the
Leopard_gecko
Vertebrae of the tail
caudal vertebrae possess fracture planes at mid-length that allow caudal autotomy. In frogs, the few caudal vertebrae are fused together to form part of
Caudal_vertebrae
Species of legless lizard
with the trunk and is often slightly longer. Slow worms exhibit caudal autotomy, the severing of the tail when it is pulled by predators. When regrown
Common_slow_worm
Species of sea slug
chloroplasts. Older individuals after autotomy did not feed and died after 10 days. The function of the autotomy is unknown. In an experiment, 82 E. atroviridis
Elysia_atroviridis
Species of lizard
mechanism called tail autotomy, where they drop their tails to flee to safety when they are attacked by a predator. However, tail autotomy only gives the gecko
Dwarf_yellow-headed_gecko
Limbless, scaly, elongate reptile
attachment, enabling locomotion without limbs.[citation needed] Caudal autotomy (self-amputation of the tail), a feature found in some lizards, is absent
Snake
Shedding of various parts of an organism
shedding of a body part, such as the shedding of a claw, husk, or the autotomy of a tail to evade a predator. In mycology, it is the liberation of a fungal
Abscission
Defensive feature of prey for selective advantage
when chased by a fish-eating merganser duck. Some animals are capable of autotomy (self-amputation), shedding one of their own appendages in a last-ditch
Anti-predator_adaptation
Species of harvester ant
stinger autotomy in which the barbed stinger and venom sac is left embedded in the skin to continuously pump venom. The cost of this autotomy is the demise
Pogonomyrmex_badius
Clade of gastropods
moved Sacoglossa from Panpulmonata to the subterclass Tectipleura. Extreme autotomy has been observed on two species, Elysia marginata and E. atroviridis,
Sacoglossa
Order of gastropods
known as kleptoplasty. Some of these species have been observed practising autotomy, severing portions of their body to remove parasites, and have been observed
Nudibranch
Species of gastropod
mucus plays a role in defense. Certain Peltodoris individuals will undergo autotomy of the mantle margin before death. During this process, most of the mantle
Peltodoris_atromaculata
Order of amphibians
is diurnal, and is avoided by snakes. Some salamander species use tail autotomy to escape predators. The tail drops off and wriggles around for a while
Salamander
Class of echinoderms, marine animal
reproduce asexually as adults either by fission of their central discs or by autotomy (self-amputation) of one or more of their arms. Single arms that regenerate
Starfish
Species of spider
supports the idea that color matching is facilitated by the visual system. Autotomy, the loss of one leg, can happen in a variety of critical situations, including
Misumena_vatia
Biological process of renewal, restoration, and tissue growth
amphibians exhibit remarkable examples of tissue regeneration. The case of autotomy, for example, serves as a defensive function as the animal detaches a limb
Regeneration_(biology)
Topics referred to by the same term
2010 platform video game by Guilherme S. Tows In sea cucumbers, a form of autotomy in which the animal ejects its internal organs as a defensive strategy
Eversion
Genus of amphibians
decreased body size, enabling the salamander to cling trees more easily. Tail autotomy refers to the salamanders' ability to release or lose their tail if necessary
Bolitoglossa
Shell-less terrestrial gastropod mollusc
the Arionidae, and among most other slugs. Some slugs can self-amputate (autotomy) a portion of their tail to help the slug escape from a predator. Some
Slug
Species of lizard
amount of energy storage lost due to autotomy. Additionally, because lizards become less active after autotomy, they increase the amount of time spent
Lampropholis_delicata
Species of lizard
regeneration, suggests that caudal autotomy is an important survival tactic in this species. Although caudal autotomy may allow the Cape dwarf gecko to
Cape_dwarf_gecko
Species of starfish
guildingi sometimes exhibits autotomy, shedding one or more of its arms. In a study on Hawaii, it was found that autotomy happens less frequently than
Linckia_guildingi
Types of defense mechanisms in insects
their abdomen with a mixture of materials like leaves, twigs, and stones. Autotomy, or the shedding of appendages, is also used to distract predators, giving
Defense_in_insects
Species of starfish
700 feet (213 metres) and favors coral reefs. Linckia multifora exhibits autotomy (self amputation) and often sheds one or more arms. In this process, the
Linckia_multifora
Species of snake
piscator may lose its tail as an escape mechanism. A rare case of such autotomy is reported from Vietnam. Active by day and night. The preferred habitat
Checkered_keelback
Species of lizard
Ctenophorus caudicinctus, commonly known as the ring-tailed dragon or ring-tailed bicycle-dragon is a native species of agamid lizard occurring in rocky
Ctenophorus_caudicinctus
Predatory order of arachnids
(2015). "Scorpion Sheds 'Tail' to Escape: Consequences and Implications of Autotomy in Scorpions (Buthidae: Ananteris)". PLOS ONE. 10 (1) e0116639. Bibcode:2015PLoSO
Scorpion
Class of ectothermic tetrapods
are prepared to jettison them to save their lives in a process known as autotomy. Certain species in the Plethodontidae have a weak zone at the base of
Amphibian
Species of lizard
words for "very large scales") and an extreme variation of integumentary autotomy. Myofibroblastic contraction in a pre-formed splitting-zone sheds the keratinized
Geckolepis_megalepis
Class of molluscs
when it is feeding. If attacked, it sheds tentacles in a process known as autotomy. The toxin released by this is distasteful and the detached tentacles continue
Bivalvia
Species of lizard
than some other species that display caudal autotomy. However, these occasional displays of caudal autotomy are responsible for the name "glass lizard"
Sheltopusik
Genus of starfishes
creatures with remarkable regenerative abilities, and capable of defensive autotomy against predators. They reproduce asexually. The genus is named after the
Linckia
Marine phylum of animals often with radial symmetries
discharging the gut and internal organs. Starfish and brittle stars may undergo autotomy when attacked, detaching an arm; this may distract the predator for long
Echinoderm
Family of lizards
geckos. Like other members of Gekkota, the Eublepharidae exhibits tail autotomy due to the fracture planes near their vent. A new tail will then grow in
Eublepharidae
Species of sea slug
way to avoid predators and imitated predators in studies did not induce autotomy. However, like other sacoglossans, E. marginata can survive solely by photosynthesis
Elysia_marginata
Species of lizard
Female (left) and male (right). Note the tail of the female after autotomy
Viviparous_lizard
Suborder of lizards
Anguidae members have pterygoid teeth. Many members of this family have tail autotomy. There is only one genus within the Anniellidae family, comprising 6 species
Anguimorpha
Species of lizard
smaller vertebrates. Like most lizards it has the ability to shed its tail (autotomy). The Iraqi eyelid gecko has a continuous light vertebral stripe extending
Eublepharis_angramainyu
Kind of connective tissue in echinoderms
mechanical defense with low energy expenditure, and in body fission and autotomy. The stiffness changes of this tissue are due to the changes in the stiffness
Catch_connective_tissue
Species of gastropod
size, with the front most cerata being the largest. Cerata are capable of autotomy. There are unique granule-filled cells at the base of the cerata that are
Melibe_leonina
Order of two-pronged bristletails
earwigs. Some diplurans have the ability to shed their cerci if necessary (autotomy). Moulting occurs up to 30 times throughout the life of a dipluran, which
Diplura
Genus of rodents
The term spiny mouse refers to any species of rodent within the genus Acomys. Similar in appearance to mice of the genus Mus, spiny mice are small mammals
Spiny_mouse
Species of wasp
an almost completely black body that separates itself due to its sting autotomy. It has a small rounded head with short antennae, thin body and thin wings
Polybia_rejecta
Type of animal behavior
Under natural conditions, orb-weaving spiders (Argiope spp.) undergo autotomy (self-amputation) if they are stung in a leg by wasps or bees. Under experimental
Spider_behavior
Species of lizard
self-amputate their tails as a defence mechanism. This ability is called autotomy. In males, the bright green genital coloration has been shown to be brighter
Sand_lizard
Pelagic lampriform fish belonging to Regalecidae
specimen of Regalecus russelii was 5.4 m (18 ft). Oarfish frequently practise autotomy, self-amputating the tail, presumably as an anti-predator adaptation. All
Oarfish
Family of lizards
in habits. Many have unusual, specialized tails with reduced rates of autotomy. They lack adhesive toepads and instead cling to bark or substrate with
Carphodactylidae
Species of arachnid
S2CID 84339564. Retrieved October 19, 2020. Brueseke, Michael (July 2001). "Leg Autotomy in the Wolf Spider Pardosa Milvina: A Common Phenomenon with Few Apparent
Pardosa_milvina
Species of spider with venomous bite native to US
evenly paced gait with legs extended. The brown recluse spider displays autotomy as a defense mechanism against physical, predatory attack to a leg as well
Brown_recluse_spider
Intentional end of an animal's own life
PMID 15537154. S2CID 23756265. Hermann, Henry R. (June 1971). "Sting autotomy, a defensive mechanism in certain social Hymenoptera". Insectes Sociaux
Animal_suicide
Topics referred to by the same term
those in the abdominal cavity). The term may also refer to: Evisceration (autotomy), ejection of viscera as a defensive action by an animal Evisceration (ophthalmology)
Evisceration
Species of spider
summer, often found in open fields and prairies. They are capable of leg autotomy, intentionally severing a limb to avoid predation. "Schizocosa avida Report"
Schizocosa_avida
Clade of reptiles
resembles the head. At their tail is a single fracture plane for tail autotomy, between the fifth and eighth caudal rings and is often visible due to
Amphisbaenia
Species of wasp
highly social Hymenoptera species to employ sting autonomy (also called autotomy) as a mechanism of colony defense. The stingers of S. surinama have lancet
Synoeca_surinama
Species of lizard
vertebrates. Like many other lizards has the ability to shed its tail (autotomy). Natalia Ananjeva; Nikolai Orlov; Theodore Papenfuss; Soheila Shafiei
Turkmenistan_eyelid_gecko
Terrestrial invertebrate, order Opisthopora
01277. PMC 6591376. PMID 31275304. Keilin, David (May 1925). "Parasitic autotomy of the host as a mode of liberation of coelomic parasites from the body
Earthworm
Injury
degloving of their tails to escape capture; this is comparable to tail autotomy in reptiles. Latifi, Rifat; El-Hennawy, Hany; El-Menyar, Ayman; Peralta
Degloving
Species of lizard
tree lizard". Unlike some other lizards, they do not drop their tails (autotomy), and their tails can be very long, stiff and pointy. Like other reptiles
Oriental_garden_lizard
Removal of a live crab's claws
Claire; Dick, Jaimie T. A.; Elwood, Robert W. (1 December 2016). "Effects of Autotomy Compared to Manual Declawing on Contests between Males for Females in the
Declawing_of_crabs
Species of gastropod
North America. These slugs are notable for being able to self-amputate (autotomy) a portion of their tail. Adults of this slug species are about 50 mm when
Prophysaon_andersonii
American evolutionary biologist
self-autotomy can reduce the cost of injury or allow the organism to escape predation, confirming two popular theories behind the practice. While autotomy
Colette_St._Mary
Class of animals
the tail will shed part of the tail structure through a process called autotomy and thus be able to flee. The detached tail will continue to thrash, creating
Reptile
Family of reptiles
Most species of skinks have long, tapering tails they can shed through autotomy if predators grab onto them. Such species generally can regenerate the
Skink
Movement of animals through trees
specialised scales under the tip of the tail; a tail regenerated after defensive autotomy however, lacks that adhesive tip. Frictional gripping is used by primates
Arboreal_locomotion
Genus of lizards
Lygodactylus picturatus in Dar es Salaam, Tanzania. The tail has been detached due to a self-defense mechanism known as autotomy.
Lygodactylus
Species of lizard
Timothy E.; et al. (November–December 2013). "Integrative Biology of Tail Autotomy in Lizards". Physiological and Biochemical Zoology: Ecological and Evolutionary
African_fat-tailed_gecko
Species of amphibian
several methods of defense, including hiding in burrows or leaf litter, autotomy of the tail, and a toxic milky liquid it excretes when perturbed. This
Spotted_salamander
Species of reptile
which includes lizards and snakes. Squamates and tuatara both show caudal autotomy (loss of the tail-tip when threatened), and have transverse cloacal slits
Tuatara
Species of lizard
shrubs. It is diurnal and eats small invertebrates. It is capable of caudal autotomy. The species was described by George Albert Boulenger in 1894. "Takydromus
Takydromus_formosanus
Order of stick and leaf insects
legs are typically long and slender, and some species are capable of limb autotomy (appendage shedding). Phasmids have long, slender antennae, as long as
Phasmatodea
Species of salamander
neotropical members of the genus Bolitoglossa, likely participates in tail autotomy as an anti-predator mechanism. Since the tails store a significant amount
Bolitoglossa_chucantiensis
Genus of aquatic crustaceans
ganglia may control some regulation or synchronisation of these functions. Autotomy, the voluntary shedding or dropping of parts of the body for defence, is
Brine_shrimp
Retrieved 22 April 2021. Mitoh, Sayaka; Yusa, Yoichi (8 March 2021). "Extreme autotomy and whole-body regeneration in photosynthetic sea slugs". Current Biology
2021_in_science
Species of lizard
individuals of G. japonicus primarily eat insects. The species is capable of autotomy, and will separate its tail from its body to escape predators. While this
Schlegel's_Japanese_gecko
Species of lizard
of "two-headed skink". Unlike many skinks, shinglebacks do not exhibit autotomy and cannot shed their tails. The average lifespan for these skinks is 10
Tiliqua_rugosa
French arachnologist (1897–1990)
written in 1930, was devoted to the development, the phenomenon of ecdysis, autotomy and regeneration in the spiders, mainly in the European species of the
Pierre_Bonnet_(naturalist)
Evolutionary arms race
(such as the comatulids) could swim or crawl, behaved nocturnally or had autotomy (the ability to shed limbs in defence). The shift in the range of sessile
Mesozoic_marine_revolution
Species of reptile endemic to Australia
fat reserves in their tails, which can be disconnected from their body (autotomy) when threatened, to aid in escape. Tails take about eight months to regenerate
Christinus_marmoratus
Species of gecko
which it uses to assist in climbing. The tail can be dropped (via caudal autotomy) to distract predators, predetermined at specific segments where small
Crested_gecko
Extinct species of lizard
SENI value of .06. The Round Island skink is a species capable of caudal autotomy. This skink is often seen darting in the underbrush or between rocks. Cole
Mauritian_giant_skink
Species of reptile
Trinajstic, Kate; Bateman, Philip W. (2022-04-29). "Ontogeny and caudal autotomy fracture planes in a large scincid lizard, Egernia kingii". Scientific
Island_glass_lizard
Species of starfish
remarkable regenerative capabilities, and endowed with powers of defensive autotomy against predators:[citation needed] Although not yet documented, L. laevigata
Linckia_laevigata
Species of wasp
mortality. The occurrences of sting autotomy in P. raphigastra is the first reported for a Ropalidiine species. Autotomy is a common phenomenon in bees and
Polybioides_raphigastra
Patricia C.; Korey, Christopher A.; Hughes, Melissa (4 May 2014). "Post-autotomy claw regrowth and functional recovery in the snapping shrimp Alpheus angulosus"
List of animals featuring external asymmetry
List_of_animals_featuring_external_asymmetry
Species of lizard
total length is up to 40 cm (16 in). This lizard sometimes sheds its tail (autotomy) to evade the grasp of a predator, regrowing it later. The male has a larger
European_green_lizard
Order of annelid worms
have the ability to control the loss of their tentacular crowns through autotomy, in much the same manner as when a lizard loses its tail. In certain circumstances
Canalipalpata
Family of leaf insects
the pronotum. Males and nymphs in particular, tend to shed their legs (autotomy) to distract predators. Like most stick insects, leaf insects are capable
Phylliidae
Species of starfish
the sunflower star may leave one of its arms behind, a process called autotomy, sacrificing this limb to make its escape. The morning sun is also a cannibal
Solaster_dawsoni
Species of oceanic ray-finned fish
noted to occur several times throughout the lifetime of the fish (serial autotomy), and all fish over 1.5 m (4.9 ft) long have bodies shortened by this.
Giant_oarfish
Sharp organ capable of injecting venom
Avulsion in Yellowjackets (Hymenoptera: Vespidae): a Functional Equivalent to Autotomy". Oxford Academic. Entomological Society of America. Retrieved 7 March
Stinger
Species of gastropod
butterfly, based on their shape and color. This sea slug has developed autotomy, or the ability to drop parts of its cerata when threatened. This species
Cyerce_nigricans
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