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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.
Hydrosaurus, commonly known as the sailfin dragons or sailfin lizards, is a genus in the family Agamidae. [2] These relatively large lizards are named after the sail-like structure on their tails. They are native to Indonesia (4 species) and the Philippines (1 species) where they are generally found near water, such as rivers and mangrove . [ 3 ]
Skull diagram in top down and side-on views. Unlike the vast majority of lizards, the tuatara has a complete lower temporal bar closing the lower temporal fenestra (an opening of the skull behind the eye socket), caused by the fusion of the quadrate/quadratojugal (which are fused into a single element in adult tuatara) and the jugal bones of ...
The brown anole (Anolis sagrei), also known commonly as the Cuban brown anole, Bahaman anole, or De la Sagra's anole, [3] is a species of lizard in the family Dactyloidae.The species is native to Cuba and the Bahamas.
The armadillo girdled lizard can be a light brown to dark brown in colouration. The underbelly is yellow with a blackish pattern, especially under the chin. Its size can range from 7.5 to 9 cm (3.0 to 3.5 in) in snout-vent length (SVL). It may grow to a maximum size of 8 in (20 cm) STL. [3]
Rhynchocephalia (/ ˌ r ɪ ŋ k oʊ s ɪ ˈ f eɪ l i ə /; lit. ' beak-heads ') is an order of lizard-like reptiles that includes only one living species, the tuatara (Sphenodon punctatus) of New Zealand.
Saurischia (/ s ɔː ˈ r ɪ s k i ə / saw-RIS-kee-ə, meaning "reptile-hipped" from the Greek sauros (σαῦρος) meaning 'lizard' and ischion (ἴσχιον) meaning 'hip joint') [3] is one of the two basic divisions of dinosaurs (the other being Ornithischia), classified by their hip structure.
The tail of Tanystropheus was compressed vertically (from top-to-bottom) at the base and thinned towards the tip, so it would not have been useful as a fin for lateral (side-to-side) movement. The long neck and short front limbs shifted the center of mass back to the long hind limbs, which would have made four-limbed swimming inefficient and ...