Dogs have been man's pet for over 14,000 years.
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Bats sleep 18-20 hours per day.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Camels and llamas can cross breed. The offspring is called a ‘Cama’.
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A scorpion can hold its breath for up to 6 days.
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Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
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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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