The Basenji dog is the only dog that is not able to bark.
4
Female kangaroos have three vaginas.
2
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Lobsters have blue blood.
476
A group of pugs is called a grumble.
10
The reindeer is the only mammal that can see UV light.
17
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