Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
On average, there's 100 billion neurons in the human brain.
83
It takes approximately 12 hours for food to entirely digest.
93
A person can live without food for about a month, but only about a week without water.
156
Enamel is hardest substance in the human body.
61
The human eye blinks an average of 4,200,000 times a year.
233
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
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