A study finds an early mammaliaform displaying tooth anatomy that gives insight into the development of structures such as complex molars and multiple roots. One evolutionary milestone in the ...

Leaf teeth, i.e. projections of the leaf margin, are common among angiosperms. These structures may differ in several aspects, e.g. in the presence or absence of an associated gland. Cucurbitoid teeth ...

Have you ever wondered if slugs can smile — or if they even have teeth? Their smooth bodies and simple appearance might ...

At first glance, teeth look a lot like bones: Both are hard, white and rich in calcium. So why aren't teeth considered part of the skeletal system? Even though teeth and bones share a few basic ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

Tooth enamel is the strongest material in the human body, yet it cannot regrow once lost. This thin, protective outer layer shields the teeth from acids, bacteria, and wear. When enamel erodes, the ...