Decomposing plants and other organisms, buried beneath layers of sediment and rock, have taken millennia to become the carbon-rich deposits we now call fossil fuels. These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world’s energy. They provide electricity, heat, and transportation, while also feeding the processes that…

A wealth of ancient remains found by chance on the banks of a river in China are some of the most astoundingly preserved fossils now known on Earth, researchers report today in the journal Science. The 518-million-year-old site, called Qingjiang, joins just a few places around the world where fossil preservation is so extraordinary, it…

About 115 million years ago in what’s now northwest China, a female bird was on the verge of motherhood. But somehow, her life on an ancient lakeshore took a traumatic turn, triggering a pregnancy complication that killed the egg forming inside her and may have even led to her *****. Entombed ever since, this mother…