The largest cell in the human body is the female egg and the smallest is the male sperm.
682

Mushrooms are more closely related to humans than they are to plants.
47
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Babies crawl an average of 200m a day.
212
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
