Reptiles first appear in the fossil record 315 million years ago and were the dominant animals during the Mesozoic era, which lasted for 270 million years until the extinction of the dinosaurs.

Crocodiles are very large reptiles that live on the land and in the water. They eat fish and other animals. There are many species of tortoise. Tortoises are slow moving reptiles and are the ...

Animals without a backbone are called invertebrates. Vertebrates and invertebrates can be sorted into smaller groups. Vertebrates, for example, are divided into mammals, birds, reptiles ...

One million species globally are at risk of extinction in the next few decades, including 27 percent of the world’s mammals, 41 percent of amphibians, 37 percent of sharks and rays, and 21 percent of ...

What they ate: Some ate plants, while others ate animals, including other dinosaurs ... conditions after the asteroid strike than many reptiles. This is because like mammals, birds are also ...

A Toolbox for the Study of Extinct Reptiles Jan. 8 ... Nov. 7, 2024 — A recent study finds that color vision evolved in animals more than 100 million years before the emergence of colorful ...