Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Obsessive nose picking is called Rhinotillexomania.
101
Tigers can see 6 times better at night than humans.
305
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252