When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
Caffeine boosts memory.
405
It's impossible to sink in the Dead Sea without equipment!
72
20252 is Smokey the Bear's own zip code.
35
It is estimated that millions of trees in the world are accidentally planted by squirrels who bury nuts and then forget where they hid them!
174
At 90 degrees below zero, your breath will freeze in mid-air and fall to the ground.
25
It takes 492 seconds for sunlight to reach the Earth!
44