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
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
Squirrels forget where they hide about half of their nuts.
698
Two dogs were among the Titanic survivors.
262