The penguin is the only bird that can swim, but cannot fly.
1
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Starfish don't have brains.
132
All the pet hamsters in the world are descended from a single wild golden Hamster found in Syria in 1930!
34
A cow produces 200 times more gas a day than a person.
90
The world's smallest mammal is the bumblebee bat of Thailand, weighing less than a penny.
60
Greyhounds have the best eyesight of any breed of dog.
28
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6