Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Worker bees must visit around 4,000 flowers in order to make one tablespoon of honey.
5
Domestic pigs average a top speed of about 11 miles per hour.
182
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8