Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
Tigers can see 6 times better at night than humans.
305
The human eye blinks an average of 4,200,000 times a year.
233
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
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
Our brains have a negativity bias and will remember bad memories more than good ones.
15