Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
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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.
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Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
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Domestic pigs average a top speed of about 11 miles per hour.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The oldest recorded elephant lived for 82 years.
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A puppy is born blind, deaf, and toothless.
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