December 12, 2017

Reptiles

The Crocodile is a common type of Reptile

Reptiles are some of the oldest life forms on Earth, with fossils dating back about 320–310 million years. Reptiles are cold-blooded, four-legged vertebrates that inhabit every continent of the world, except Antarctica. A reptile's skin is covered with a tough external plate or scute, such as the … [Read more...]

Amphibians

Amphibian, Frog

Amphibians begin life as water-breathing animals, and then in maturity evolve into an air-breathing animal. Amphibians are also cold-blooded animals, meaning they rely on external, environmental heat sources, such as the Sun, to control their body temperature. Examples of amphibians include … [Read more...]