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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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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In Australia, there are spiders big enough to eat snakes.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
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