Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
On average, there's 100 billion neurons in the human brain.
83
You forget 90% of your dreams.
256
Pain occurs when sounds are above 130 db.
123
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139