Rattlesnake mating sessions have been known to last more than 22 hours.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
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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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