Comparing Mammals and Reptiles

In the animal kingdom, two common groups of animals are mammals and reptiles. Mammals, such as dogs and cats, are warm-blooded, have fur or hair, and typically give live birth. Reptiles, on the other hand, include snakes and lizards, are cold-blooded, often have scales, and lay eggs. Both groups play important roles in their ecosystems, but they have different characteristics and adaptations that help them survive in their environments.