It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Sharks, like other fish, have their reproductive organs in their chests.
248
Denmark has twice as many pigs as there are people.
66
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2