It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
If two pieces of metal touch in space, they become permanently stuck together.
808
Placing alcohol on a scorpion's back will make it go crazy and fatally sting itself.
1k
Only about 2% of the world population has green eyes.
36
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
The scent of women’s tears temporarily reduces sexual arousal and testosterone production in men.
12