Newly identified partial skeletons of "mysterious humans" excavated at two caves in southwest China display an unique mix of primitive and modern anatomical features, scientists say.
"Their skulls are anatomically unique. They look very different to all modern humans, whether alive today or in Africa 150,000 years ago," said evolutionary biologist Darren Curnoe, the lead author of the study, from the University of New South Wales in Australia.
The fossils found at excavation sites in Longlin Cave, in Guangxi Province, and the Maludong Cave, in Yunnan Province, indicate that the stone-aged people had short, flat faces and lacked a modern chin. They had thick skull bones, a rounded brain case, prominent brow ridges and a moderate-size brain.
It sounds like the premise of a "Far Side" comic: A fruit fly with an insatiable sexual appetite is no good with women and looks for respite at the bottom of a bottle.
But revelations about those puny nuisances that have been annoying your oranges all week didn’t come from Gary Larson, but from a group of researchers at the Heberlein lab at the University of California, San Francisco.
Galit Shohat-Ophir, the team’s lead researcher, and her colleagues discovered that the more a male fruit fly’s sexual advances are rejected, the more likely the fly will turn to alcohol as a consolation.
The findings, which they published in the journal Science, were the culmination of years of research on the “reward” pathway in the brain, which is linked to addiction.
“A reward is a kind of stimulus that reinforces behavior, in that it increases the chance that the behavior will occur again,” Shohat-Ophir told CNN Light Years. “Usually, it’s pleasure-related effects.”
Light Years strives to tell the stories of science research, discovery, space and education. This is your go-to place on CNN.com for today’s stories, but also for a scientific perspective on the news and everyday wonders. Come indulge your curiosity in all things space and science related, brought to you by the entire CNN family.
July 19thAtlas V launch of US DOD MUOS-2 satellite, notable for large "551" config of Atlas
Aug 3rdJapanese HTV-4 flight to ISS on cargo supply mission
Aug 14thSpaceX launch of Canadian satellite in the first launch from their new Vandenberg facility, and first launch of upgraded Falcon 9 v1.1 launch vehicle
Aug 28thDelta IV Heavy launch of NROL-65 spy satellite
SeptemberSoyuz TMA-08M flight returning Expedition 36 crew from ISS to Earth (Kazakhstan)
Sept 12thOrbital Sciences maiden flight of Cygnus cargo vehicle on Antares rocket to ISS
Sept 25thSoyuz TMA-10M flight launching Expedition 38 crew to ISS
Dec 9thSpaceX Dragon launch by Falcon 9 v1.1 on CRS-3 cargo supply mission to ISS
recurringfirst powered test flights of Scaled Composites' SpaceShipTwo commercial vehicle, to be used by Virgin Galactic for sub-orbital tourism