If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
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
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The human brain has the capacity to store everything that you experience.
4k
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
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