Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The Basenji dog is the only dog that is not able to bark.
4
Cats lose almost as much fluid in the saliva while grooming themselves as they do through urination!
205
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17