Girls tend to join at an earlier age than boys.

Girls tend to perform better than boys in the later years of school.

Girls in high school also tend to have lower self-esteem do to body image.

So girls tend to put much more emphasis on their appearance.

For the most part, girls tend to keep diaries more than boys.

"Also, girls tend to be better at finding human contact."

"The girls tend to peak very early, at the age of 15 and 16," he said.

"The girls form teams in fourth grade and tend to stay together right through high school," she said.

Girls also tend to take certain subjects at school or university in much the same way as they are segregated into particular jobs.

I need a girl to tend my needs on the hunt.