A portion of the water you drink has already been drunk by someone else, maybe several times over.
170
Donkeys kill more people annually than plane crashes.
927
There are 293 ways to make change for a dollar.
148
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
Couples' personalities converge over time to make partners more and more similar.
235
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Only humans shed emotional tears.
331
The chills you sometimes feel when listening to music is called "musical frisson."
18