The Basenji dog is the only dog that is not able to bark.
4
Domestic pigs average a top speed of about 11 miles per hour.
182
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2
Dolphins have names for one another.
18
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217