It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Domestic pigs average a top speed of about 11 miles per hour.
182
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
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
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6