fertility, n.All

Why does it take 100 million sperms to fertilize one egg?Because they won't stop to ask directions

A single human male produces enough sperm in two weeks to impregnate every fertile woman on the planet.

Fertility is hereditary. If your parents didn't have any children, neither will you.

Rabbits are very fertile --- In 1859, 24 rabbits were released in Australia. Within 6 years, the population grew to 2 million.

Fertility is an inherited trait that never skips a generation.