One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
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A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
12
A puppy is born blind, deaf, and toothless.
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It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11