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

Surprisingly, that honour goes to a tiny, almost eel-like creature that lived long before either of those beasts, known as ...

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

Ancient marine animals called conodonts possessed incredibly sharp feeding elements. New research shows these extinct ...

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 ...

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, ...

The human body is resilient, but not every part is replaceable internally. As a result, people are always on the lookout for better methods of transplant and prosthesis, which we’ve harnessed as ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Peek inside a few animal mouths and you'll see evidence of evolution's finest work. Take snakes, ...

As humans we need to clean our teeth regularly to prevent cavities, while animals seem to have healthy teeth without using toothbrushes or toothpaste. With humans, we need to clean our teeth regularly ...

Bite force, a measure of the strength of an animal's bite, helps researchers understand a species' role in the ecosystem.