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.
24
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Cows can sleep standing up, but they can only dream lying down.
745
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
When cats are happy, they may squeeze their eyes shut.
10
Sharks, like other fish, have their reproductive organs in their chests.
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