It has been estimated that a bite from a grizzly bear can crush a bowling ball.
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Lurch, a Watusi bull, had the largest horns in the world.
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The male seahorse carries babies and 'gives birth' to them instead of the female.
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Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 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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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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