The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Female kangaroos have three vaginas.
2
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Cats recognise the voice of their owner, but never evolved to care.
22
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14