Primeval fish that were thought to be "living fossils," largely unchanged since the time of the dinosaurs, are actually evolving dramatically — and they evolved faster when Earth's continents moved ...

The University of Wyoming Geological Museum will host the annual Fossil Fish Festival Saturday, April 20. The event, which is free and open to the public, will take place from 10 a.m.-1 p.m.

A tiny fossil fish from Alberta is forcing scientists to rethink a story that has sat quietly in textbooks for decades. It is a story about how freshwater fish rose to dominance, and how a few bones ...