When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Penguins have a gland above their eye that turns saltwater into freshwater.
12
When dragonflies mate, their tails form a love heart.
22
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A 42-foot sperm whale has about 7 tons of oil in it.
209
There are approximately three chickens for every human on Earth.
13
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9