Climate change and asteroids are linked with animal origin and extinction -- and plate tectonics also seems to play a key evolutionary role, 'groundbreaking' new fossil research reveals. The discovery ...

Our ongoing effort to collect Late Devonian vertebrate fossils (370 to 360 million years old) in Pennsylvania has resulted in lots of new discoveries from highway road cuts exposing the rocks of the ...

Scientists who famously discovered the lobe-finned fish fossil Tiktaalik roseae, a species with some of the clearest evidence of the evolutionary transition from fish to limbed animals, have described ...

PHILADELPHIA (March 27, 2013)— "We call it a 'fish-eat-fish world,' an ecosystem where you really needed to escape predation," said Dr. Ted Daeschler, describing life in the Devonian period in what is ...