Paleontologists have discovered an almost complete skull of a previously unknown mammal that likely resembled a large modern-day groundhog and lived alongside dinosaurs. The species, found on Madagascar, is shaking up theories of early mammal evolution and diversity. Stony Brook University paleontologist David Krause led the research team, which reports its findings in today’s issue […]
DNA recovered from a 36,000 year old fossil skeleton found in Russia shows early divergence of Eurasians once they had left Africa, and the deep shared ancestry of Europeans. The new study, carried out by an international team of researchers, also reveals when Neanderthals and early modern humans out of Africa interbred – around 54,000 […]
A new study – led by Oregon State University, with significant contributions from the University of Washington – shows that the increase of atmospheric carbon dioxide that contributed to the end of the last ice age more than 10,000 years ago did not occur gradually but rather was characterized by three abrupt pulses. Scientists are […]
This image of comet 67P/Churyumov-Gerasimenko, taken by Rosetta’s Optical, Spectroscopic, and Infrared Remote Imaging System (OSIRIS) on Sept. 20, from a distance of 4.5 miles (7.2 kilometers), shows jets of dust and gas streaming into space from the neck of the comet’s nucleus. Images of the comet nucleus, taken by Rosetta earlier in the summer, […]