A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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Cats recognise the voice of their owner, but never evolved to care.
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Whales and dolphins can't taste anything other than salt.
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Sharks have been on the planet longer than trees.
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The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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