In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
There are about 255 babies born worldwide every minute.
46
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
By weight, Bone is five times stronger than steel.
417
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15