What's the Difference Between a Mammal and a Bird?

Mammals and birds are both amazing animals, but they have some big differences.

Bold words help you remember important ideas!

Mammals usually have hair or fur, and they give birth to live babies (except for a few special ones). They also drink milk from their moms. Think of a dog, a cat, or even a human, all mammals!

Birds have feathers instead of hair or fur, and they lay eggs. They also have beaks and can fly (most of them!). Think of a chicken, a bird like a sparrow, or even a dinosaur (yes, birds are related to dinosaurs!).

Mammals usually walk on four legs, like a cow or a horse, but some mammals, like humans and dolphins, stand up and walk on two legs.

Birds use their wings to fly through the air, it’s like having a built-in airplane!

Both mammals and birds are warm-blooded, meaning they can keep their body heat no matter how cold it gets outside. That makes them both very strong and magical in their own way! Mammals and birds are both amazing animals, but they have some big differences.

Bold words help you remember important ideas!

Mammals usually have hair or fur, and they give birth to live babies (except for a few special ones). They also drink milk from their moms. Think of a dog, a cat, or even a human, all mammals!

Birds have feathers instead of hair or fur, and they lay eggs. They also have beaks and can fly (most of them!). Think of a chicken, a bird like a sparrow, or even a dinosaur (yes, birds are related to dinosaurs!).