As whales go, humpbacks aren't the biggest—a "mere" 40-45 feet long compared to 60 foot sperm whales and 100 foot blue whales. But humpbacks are arguably the best loved and they're definitely the biggest show offs of all the cetaceans.
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No one is certain when humpback whales appeared, but it's possible that their songs are another ancient legacy from the ocean world.
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