Denmark has twice as many pigs as there are people.
66
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
Only 3% of bird species have penises.
0
The octopus does not have a blind spot.
273
A 42-foot sperm whale has about 7 tons of oil in it.
209