Classifying Animals

Birds have feathers, lay eggs, have beaks, and most can fly.

A vertebrate is an animal that has a backbone.

Mammals are warm-blooded vertebrates that have hair or fur and usually give live birth.

Both can lay eggs.

An invertebrate is an animal that does not have a backbone.

Examples of vertebrates include lizards, birds, and mammals.

They are all invertebrates.

Mammals are warm-blooded and have fur, while reptiles are cold-blooded and have scales.

All birds have feathers.

Animals can be classified as vertebrates or invertebrates.