Whales are not fish.
They are animals that breathe air like we do.
A humpback whale and her calf. Getty
Baby whales drink milk from their mothers.
A baby whale is called a calf.
Whales live all the time in deep sea.
They can hold their breath for a very long time.
An orca whale jumping. ©Getty
They come up to get air then dive deep again.
Sometimes they jump.
There are lots of different kinds of whale.
Bottlenose dolphins. Getty Images
Some whales are small.
Dolphins are small whales.
Blue whale. Getty Images
Some whales are huge.
The blue whale is even bigger than the biggest dinosaur.
Orca whale. Getty Images
Some whales have teeth.
Some whales have baleen instead of teeth.
Baleen is like a fringe or brush inside a baleen whale's mouth. Getty Images
Baleen is like a big strainer that pushes out water but keeps food in the whale's mouth.