A 42-foot sperm whale has about 7 tons of oil in it.
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Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
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Rattlesnake mating sessions have been known to last more than 22 hours.
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Squirrels forget where they hide about half of their nuts.
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It has been scientifically proven that stroking a cat can lower one's blood pressure!
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