Only 2% of the Earth's population are natural redheads.
13
Intelligent people have more zinc and copper in their hair.
233
Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
76
76% of Americans celebrate New Year's Eve in groups of less than 20.
55
Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
13
Babies crawl an average of 200m a day.
212
Children's sense of smell is better than adults'.
860