reptiles

1. A class of scaly vertebrates that usually reproduce by laying eggs. Lizards, snakes, turtles, and alligators are reptiles. Reptiles are cold-blooded animals.

The dinosaurs were reptiles.

Example Sentences

These remains indicate that enormous sharks shared the top of the food chain with giant marine reptiles during the Age of Dinosaurs.

Read more on Science Daily

They built 3D brain models for 18 of these reptiles and measured the optic nerves in each.

Read more on Science Daily

From amphibians and reptiles to birds and mammals, no biological class is immune.

Read more on Literature

"It shows that, in what is now southern Brazil, reptiles had already formed diverse communities adapted to various survival strategies. Moreover, this discovery reveals that such diversity was not an isolated phenomenon."

Read more on Science Daily

They show that structures analogous to the superior colliculus -- found in fish, amphibians, reptiles, birds, and mammals -- share a common purpose: merging sensory and motor information to guide gaze and attention.

Read more on Science Daily