If your DNA was stretched out it would reach to the moon 6,000 times.
256
The human body contains over a billion miles of DNA.
147
The human sigh acts as a physiological reset button.
23
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Yawns are more contagious among people with closer relationships.
163
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