There are approximately three chickens for every human on Earth.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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A giraffe's kick is so powerful that it can decapitate a lion.
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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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The elephant brain weighs about 6,000g.
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Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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