55-Million-Year-Old Penguin Fossils Preserve Clues to a Warmer Antarctica

A team of paleontologists studying penguin fossils from Seymour Island found that ancient bird bones can preserve chemical evidence of past climate change. Ancient penguin bones from Seymour Island, near the Antarctic Peninsula, preserve more than the remains of the birds themselves. Paleontologists from China University of Geosciences (Beijing) found that their chemical composition can [...]