When dragonflies mate, their tails form a love heart.
22
The largest earthworm on record was found in South Africa and measured 22 feet.
151
A dairy cow can produce more milk when listening to music.
446
When cats are happy, they may squeeze their eyes shut.
10
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
Condoms were originally made of animal intestines or linen.
347