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A white-headed dwarf gecko with tail lost due to autotomy. Autotomy (from the Greek auto-, "self-" and tome, "severing", αὐτοτομία) or 'self-amputation', is the behaviour whereby an animal sheds or discards an appendage, [1] usually as a self-defense mechanism to elude a predator's grasp or to distract the predator and thereby allow escape.
The African fat-tailed gecko is equipped with the ability to lose its tail when threatened or attacked. If the tail is lost, the new tail will have a more rounded shape, similar to the head. It may not match the body coloration and pattern of the gecko. The tail is also where they store their fat, an important energy reserve.
Adults of most anoles are between 4 and 8 cm (1.5–3 in) in snout-to-vent length, [46] and between 10 and 20 cm (4–8 in) in total length, including the tail. [ 1 ] [ 8 ] In the smallest, the five-striped grass anole , the snout-to-vent length is about 3 and 3.5 cm (1.2 and 1.4 in) in females and males respectively, [ 2 ] [ 46 ] but it is a ...
The tail length can be equal to the length of the body from snout to the anus (SVL or Snout-Vent Length). [3] In 2004, the species was synonymized with Lygodactylus picturatus. [4] The yellow-headed dwarf gecko has a defense mechanism called tail autotomy, where they drop their tails to flee to safety when they are attacked by a predator.
The common house gecko (Hemidactylus frenatus) is a gecko native to South and Southeast Asia as well as Near Oceania. It is also known as the Asian house gecko, Pacific house gecko, wall gecko, house lizard, tiktiki, chipkali [3] or moon lizard. These geckos are nocturnal; hiding during the day and foraging for insects at night.
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Eurydactylodes geckos have a long and slender tail [3] – being approximately the same length as their body [4] and possessing a snout-vent length of 100% [7] - and are round in cross section. [3] The tail is muscular [ 7 ] and prehensile, [ 3 ] aided by a subcaudal scansorial pad and adhesive subcaudal tissue with soft, long hairs. [ 2 ]
To fully explain why beavers slap their tails we need to look at their social structures. They live in colonies of around 8 to 12 individuals and form strong family bonds.