Out of all the senses, smell is most closely linked to memory.
146
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
The sun is 330,330 times larger than the earth.
75
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38