Every year, humpback whales swim from cold polar waters to
warm tropical waters in order to mate.
They usually travel in groups.
Humpback whales talk to each other with moans and screams.
When trying to attract female whales, males repeat some sounds
for a long time. These "songs" can sound beautiful.
Humpback whales eat by opening their mouths wide and swimming
through schools of small fish.
There are only about 25,000 humpback whales living today.
Where do they live?
All the world's oceans
Why are they endangered?
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