Mosquitoes don't just bite you, they also pee on you.
11
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
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
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
Only 3% of bird species have penises.
0
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12