One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
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Denmark has twice as many pigs as there are people.
66
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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Whales and dolphins can't taste anything other than salt.
11