Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
A cow produces around 200,000 glasses of milk in her lifetime.
373
Sloths take two weeks to digest their food.
243
Giant Anteaters' front legs look like a panda.
48
The reindeer is the only mammal that can see UV light.
17
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23