Only 3% of bird species have penises.
0
A lion in the wild usually makes no more than twenty kills a year.
186
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
Camels and llamas can cross breed. The offspring is called a ‘Cama’.
10
The elephant brain weighs about 6,000g.
274