Something that is only a blot in a slab of Silurian rock may still contain the map of an eye to where a nerve once led. A ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a ...

Every mammal, every fish, every vertebrate (creatures that have a spine) has two eyes. It’s been that way for millions and ...

About 445 million years ago, Earth’s oceans turned into a danger zone. Glaciers spread across the supercontinent Gondwana, and shallow seas shrank fast.

New fossil evidence from China suggests that some of our vertebrate ancestors had four eyes. The study, published in Nature, ...

Scientists analyzing 443-million-year-old Scottish fossils have uncovered the early evidence that some of the first groups of vertebrates possessed surprisingly advanced eyes and traces of bone, ...

A feeding method of the extinct jawless heterostracans, among the oldest of vertebrates, has been examined and dismissed by scientists, using fresh techniques. A feeding method of the extinct jawless ...

A fish thought to be evolution’s time capsule just surprised scientists. A detailed dissection of the coelacanth — a 400-million-year-old species often called a “living fossil” — revealed that key ...

The fossil of an ancient sea squirt found in a collection at the Utah Museum of Natural History turned out to be the oldest of its kind. When you purchase through links on our site, we may earn an ...

With terrifyingly sharp teeth arranged around a circular mouth, lampreys look about as primitive a vertebrate as you could imagine. But a new study finds that the animals have a surprising similarity ...