An illustration of a four-eyed myllokunmingid, a jawless fish that lived more than 500 million years ago Xiangtong Lei and Sihang Zhang Many spine-bearing creatures, or vertebrates, have a curious bit ...

Scientists discover missing evolution puzzle piece in 130-million-year-old rocks. The discovery is a result of an international collaboration, in which the Faculty of Sciences of the University of ...

Competition between species played a major role in the rise and fall of hominins -- and produced a 'bizarre' evolutionary pattern for the Homo lineage -- according to a new study that revises the ...

Charles Darwin proposed that evolution is driven by gradual variations in organisms that have a survival advantage in a changing environment. But University of Maryland evolutionary biologist Karen ...

There may be twice as many vertebrates on the planet as previous estimates claimed, according to a new study published in the journal Proceedings of the Royal Society B: Biological Sciences. That's ...

A tiny fossil fish, roughly 3 centimeters long and approximately 436 million years old, has been identified as the oldest known bony fish ever found, pushing back the timeline for when the ancestors ...