A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
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The elephant brain weighs about 6,000g.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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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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