Jellyfish as a species are actually older than dinosaurs and sharks.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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When dragonflies mate, their tails form a love heart.
22
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Dogs have been man's pet for over 14,000 years.
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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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