If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Obsessive nose picking is called Rhinotillexomania.
101
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
Your heart will pump about 212 million liters in its lifetime.
26
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
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
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11