An average vagina is approximately 10 cm long. The lower 1/3 of the vaginal canal is responsive and sensitive.

Planet Earth, including all of its inhabitants, could be destroyed with 1 241 166 nuclear bombs. An average man’s ejaculate contains a minimum of 40 million sperms.

On average, human hair grows at the rate of 1 cm every month. Some bamboo species grow 30 cm per day.