Cats and dogs can hear ultrasound.
350
A lion in the wild usually makes no more than twenty kills a year.
186
The reindeer is the only mammal that can see UV light.
17
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25