Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Tigers can see 6 times better at night than humans.
305
If your DNA was stretched out it would reach to the moon 6,000 times.
256
A human being loses an average of 40 to 100 strands of hair a day.
133
One human hair can support 3 ounces.
191
Our brains have a negativity bias and will remember bad memories more than good ones.
15
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