The oldest creature ever found was Ming the clam at an admirable 507 years old.
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Vanilla flavoring is sometimes made with an ingredient from beaver pee.
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The elephant brain weighs about 6,000g.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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