Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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A scorpion can hold its breath for up to 6 days.
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There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Cows can sleep standing up, but they can only dream lying down.
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Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
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!)
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