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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Parrot parents "name" their children with a signature call.
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Cats and dogs can hear ultrasound.
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Penguins have a gland above their eye that turns saltwater into freshwater.
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A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
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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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Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
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