Female kangaroos have three vaginas.
2
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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When dragonflies mate, their tails form a love heart.
22
The largest earthworm on record was found in South Africa and measured 22 feet.
151
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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