A tiny fossil fish, roughly 3 centimeters long and approximately 436 million years old, has been identified as the oldest ...

These days, all fish have teeth. The shapes of their teeth vary according to diet, ranging from the little pegs of goldfish ...

518-million-year-old fossil reveals vertebrates once had four eyes and extra organs that later shaped evolution.

Scientists discovered some of the oldest bony fish fossils in China. The fossils explain the early history of animals with backbones.

New fossil evidence from China suggests that some of our vertebrate ancestors had four eyes. The study, published in Nature, takes a closer look at a structure found in multiple 518 million-year-old ...

Every mammal, every fish, every vertebrate (creatures that have a spine) has two eyes. It’s been that way for millions and millions of years. But maybe it wasn’t like that forever. During the Cambrian ...

New research from the University of St Andrews has discovered a crucial piece in the puzzle of how all animals with a spine - including all mammals, fish, reptiles and amphibians - evolved. In a paper ...

After losing its original eyes, one of our distant ancestors may have done what evolution does best: tinkered with what was available, reshaping a single central visual organ into two new eyes. That’s ...

How many fossils does it take to accurately train an image-based AI algorithm? According to a new study co-authored by Bruce MacFadden, UF Distinguished Professor Emeritus and retired curator of ...