A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
A group of unicorns is called a blessing.
304
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23