Yawns are more contagious among people with closer relationships.
163
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Our Right Lungs takes more air than our left lung.
194
Gorillas can catch human colds and other illnesses.
205
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
We share 70% of our DNA with a slug.
218
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24