Blue whales
Definition
Whales are large marine mammals that live in oceans, breathe air through blowholes, and give birth to live young.
Main Points
Live in oceans
Breathe air using a blowhole
Are warm-blooded mammals
Give birth to live babies (calves)
Some have baleen, some have teeth
Interesting Points
Whales can be very big (like the Blue whale)
They use sounds to communicate
Some whales travel long distances every year
They can stay underwater for a long time
Fun Fact
Whales sleep with half of their brain awake!
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