Unique Facts

While many animals produce tears for lubrication and protection, humans are unique in shedding tears in response to emotions such as sadness, joy, or frustration.

The longest commonly-recognized words with no repeating letters are "uncopyrightable" and "dermatoglyphics," both at 15 letters!

No 2 cornflakes are identical!

A fetus develops fingerprints starting at 10 weeks, with unique patterns fully formed by 17 weeks of pregnancy.