Yawns are more contagious among people with closer relationships.
163
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
65
It is impossible to hum if your nose is plugged.
366
If you put two straws in your mouth, one inside a drink and one outside it, you won't be able to drink through either straw.
202
There's a rare breed of pig that looks like a sheep.
14