Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
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
The elephant brain weighs about 6,000g.
274
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
When dragonflies mate, their tails form a love heart.
22
Cows can sleep standing up, but they can only dream lying down.
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