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Scutes on an alligator foot A scute ( / s k j uː t / ⓘ ) or scutum ( Latin : scutum ; plural: scuta " shield ") is a bony external plate or scale overlaid with horn, as on the shell of a turtle , the skin of crocodilians , and the feet of birds .
Overlying the boney elements are a series of scutes, which are made of keratin and are a lot like horn or nail tissue. In the center of the carapace are five vertebral scutes and out from these are four pairs of costal scutes. Around the edge of the shell are 12 pairs of marginal scutes.
The "central scutes" extend over the dorsal mid line of the carapace from head to tail, with the "costal scutes" running along each side of the central scutes. The "marginal scutes" run along the outer sides of the shell, and the "nuchal scutes" are found in the area directly behind the turtle's head.
Scutes on a crocodile. Reptile skin is covered with scutes or scales which, along with many other characteristics, distinguish reptiles from animals of other classes. They are made of alpha and beta-keratin and are formed from the epidermis (contrary to fish, in which the scales are formed from the dermis).
The epidermal scutes of the alligator consists of oblong horny scales, arranged in transverse rows; the long axes of the scales are parallel to that of the body.On the tail, except along the mid-dorsal line, and on the ventral side of the trunk and head these scales are very regular in outline and arrangement; on the sides of the head and trunk and on the legs they are much smaller and less ...
When you watch the video you can see the octopus discovers the fish inside the bottle but can’t get it out. It steps back for a few minutes, considering the problem. Then, the octopus returns to ...
These forms persisted until the end of the Jurassic. [5] During the Jurassic, crocodylomorphs morphologically diversified into numerous niches, with the subgroups Neosuchia (which includes modern crocodilians) and the extinct Thalattosuchia adapting to aquatic life, while some terrestrial groups adopted herbivorous and omnivorous lifestyles.
Meghan Markle is one proud — and stylish — mom!. The Duchess of Sussex uploaded her first Instagram selfie video on Tuesday, Feb. 4. Eagle-eyed fans noticed that in it, she paid tribute to her ...