Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The sensitive ...

Can we examine the teeth of living fish and other vertebrates in detail, repeatedly over time, without harming them? Previously, small animals often had to be euthanized to obtain precise information, ...

Eleanor has an undergraduate degree in zoology from the University of Reading and a master’s in wildlife documentary production from the University of Salford. Eleanor has an undergraduate degree in ...

The origin of teeth in the evolutionary mystery of the world’s animal timeline is very much a mystery. We know animals haven’t had teeth since the dawn of time, but what we don’t know exactly when ...

How the dental mold works: Researchers take impressions of fish teeth, using a fish called Polypterus as an example; (A) 3D model of the mold showing mandibular/lower side, maxillary/upper side, and ...

New research shows that conodonts, extinct eel-like marine animals, possessed tooth elements sharper than those of any living vertebrate. Using high-resolution microscopy, scientists measured tip ...

A new study has revealed a chain mail-like woven microstructure that gives parrotfish teeth their remarkable ability to chomp on coral all day long - the structure could serve as a blueprint for ...

The sensitive interior of human teeth might have originated from a seemingly unlikely place: sensory tissue in fish that were swimming in Earth’s oceans 465 million years ago. While our teeth are ...