Tigers can see 6 times better at night than humans.
305
The average person's skin weighs twice as much as their brain.
131
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Pain occurs when sounds are above 130 db.
124