Dogs have been man's pet for over 14,000 years.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The Savannah is the largest domestic cat breed. It resembles a small leopard and behaves like a dog. They can grow up to 40 lbs, have an eight foot vertical jump, and can be trained to walk on a leash and play fetch.
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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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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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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!)
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The cat brain weighs about 30g.
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