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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A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
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The head of a jellyfish is called the "Bell."
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The colossal squid has the largest eyes in the world.
4
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
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