Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Sloths take two weeks to digest their food.
243
Parrot parents "name" their children with a signature call.
112
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
A giraffe's kick is so powerful that it can decapitate a lion.
216