A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Mosquitoes don't just bite you, they also pee on you.
11
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Jellyfish as a species are actually older than dinosaurs and sharks.
383
Lurch, a Watusi bull, had the largest horns in the world.
32
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