Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Did you know?
Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
Did you know?
The longest a person has survived after a heart transplant is 24 years.
Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Tooth Numbering System
Endocrine System - male
reproductive system in plants
Procedures and Diagnostic Tests Related to the Endocrine System
