It's thought to have emerged over 80 million years ago, but it wasn't until 2003 that ... as the power of plate tectonics transformed the Earth into the sprawling puzzle of continents we see ...

A few fossilized body parts hinted at an enigmatic bird's close ties to waterfowl like ducks and geese. A newfound skull may bolster that idea.

Around 370 million years ago, Earth gradually descended into the longest ... Our new study provides an original 80-million-year CO₂ record that tracks the climate during the descent into and ...

Around 370 million years ago, Earth gradually descended into the longest ... Our new study provides an original 80-million-year CO₂ record that tracks the climate during the descent into and ...