Paleontologists surveying a dry riverbed in northeastern Brazil repeatedly encountered the same type of fossil: a lower jaw ...

Denticles and denticulate platelets belonging to internal structures of Phlebolepis elegans Pander, along with two new types of scales, are described for the first time. Large fragments taken from ...

The biggest sharks in the world have tiny teeth all over their eyeballs, scientists have discovered. In analyzing the eyes of whale sharks, which can reach up to 60 feet in length, researchers found ...

Whale sharks — which grow to an enormous 40 feet — have teeth on their eyeballs, according to a new study titled “Armored eyes of the whale shark.” They also have retractable eyeballs, the same study ...

Many experts have long touted the benefits of covering surfaces in shark skin-like ridges called “riblets” because the technology has been purported to significantly reduce drag. But a new study in ...