You probably wouldn't attempt to run a marathon without any training. Yet that's exactly what migratory birds do when they set off on their epic journeys.
David Fastovsky, who described the nest of fossilized baby dinosaurs in a journal article this month, calls Protoceratops "a fascinating and unexpected mass of contradictions."
Butterfly wings consist of many-layered nanostructures. Mimicking them, an international team of researchers has created a silicon wafer that traps both air and light.
A survey finds that people in the U.S., Canada and the U.K. largely support this research but are cautious about implementing intentional climate changes.
A new IPCC summary report suggests that extreme weather events - heat waves, heavy rains, coastal flooding - will worsen in this century as climate warms.
East Antarctica is so cold and remote, it's difficult to measure temperatures there. As yet, there's no definitive answer on whether it's warming or cooling.