Your thumb is about the same size as your nose.
124
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217

