A group of kittens is called a "kindle".
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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The colossal squid has the largest eyes in the world.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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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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