Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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Lobsters have blue blood.
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In 1918, a homing pigeon saved over 190 American soldiers by delivering a message to nearby support despite having been shot through the breast, blinded in one eye, covered in blood, and with a leg hanging on by just a tendon.
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It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11