Reptiles are air-breathing vertebrates covered in special skin made up of scales, bony plates, or a combination of both. They include crocodiles, snakes, lizards, turtles, and tor- toises.

Cornified scales of reptiles increased their capacity to live in terrestrial environments. The stratum corneum is very thin, with little keratin. Skin is used for gas exchange. Thick keratin layer ...

Most reptiles are covered in dry, scaly skin. They can be found living in both ... Scales – Scales are hard overlapping plates which cover an animal's body. Most reptiles have scales.

the Scutosaurus had very thick skin covered in bony plates with exceptionally strong muscles making them very well-armored. It is believed that these large armor-plated reptiles were herbivores ...