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Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
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?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
Did you know?
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
![Division of labour among castes of leafcutter ants, Atta sexdens, and naked mole rats, Heterocephalu](https://biology-forums.com/gallery/47/medium_33_09_09_11_10_15_28_1718220.jpeg)
![Body cavities. (A) Lateral view of a sagittal section through the body. (B) Anterior view of a front](https://biology-forums.com/gallery/47/medium_14755_20_09_12_5_58_20_885570.jpeg)