Most dust particles in your house come from dead skin.
48
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
German chemists made a replica of a trophy the size of one molecule.
68
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
Scientists aren't sure what color dinosaurs were.
312
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
One ragweed plant can release as many as one billion grains of pollen!
51