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Squamata (/ s k w æ ˈ m eɪ t ə /, Latin squamatus, 'scaly, having scales') is the largest order of reptiles, comprising lizards and snakes.With over 12,162 species, [3] it is also the second-largest order of extant (living) vertebrates, after the perciform fish.
One of the animals shown is a two-headed snake (conjoined twin snakes), with one head on each end, much like an amphisbaena. The image is captioned, " two headed snakes of India are harmless ". [ 8 ] It is possible a sighting of an animal like this was the origin of the amphisbaena, or that the Greek mythological creature is used, as well as ...
The fossil record of snakes is relatively poor because snake skeletons are typically small and fragile, making fossilization uncommon. Fossils readily identifiable as snakes (though often retaining hind limbs) first appear in the fossil record during the Cretaceous period. [ 7 ]
In many cases the cast skin peels backward over the body from head to tail, in one piece like an old sock. A new, larger, and brighter layer of skin has formed underneath. [5] [7] An older snake may shed its skin only once or twice a year, but a younger snake that is still growing may shed up to four times a year. [7]
This is a list of extant snakes, given by their common names. Note that the snakes are grouped by name, ... Cuban wood snake; E. Eastern hognose snake; Egg-eater.
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The skull of Python reticulatus.. The skull of a snake is a very complex structure, with numerous joints to allow the snake to swallow prey far larger than its head.. The typical snake skull has a solidly ossified braincase, with the separate frontal bones and the united parietal bones extending downward to the basisphenoid, which is large and extends forward into a rostrum extending to the ...
The male may also grasp the female's head with its jaw (Lotze 1975). 4 to 6 weeks after about 10 eggs are laid (extremes are from 2 to 20, with 5–11 on average) in a moist, warm spot where organic decomposition occurs, usually under hay piles, in rotting wood piles, heaps of manure or leaf mold, old tree stumps and similar places.