Penguins have a gland above their eye that turns saltwater into freshwater.
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Cats recognise the voice of their owner, but never evolved to care.
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There are approximately three chickens for every human on Earth.
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The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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Sharks have been on the planet longer than trees.
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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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Allegedly, Chrysippus, the Greek philosopher, died of laughter after getting his donkey drunk and watching it try to eat figs.
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