If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Enamel is hardest substance in the human body.
61
We share 70% of our DNA with a slug.
218
The human sigh acts as a physiological reset button.
23
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Our Right Lungs takes more air than our left lung.
194