In the May 27 SN: Genetic intruders, seeing Chaco in a new light, an artificial womb, Mars’ origin revisited, domestication of the horse, glimpsing Earth’s glacial past, what’s in a fang blenny’s bite and more.
CHOW TIME When scientists used light to stimulate select nerve cells in a region of the brain called the zona incerta, mice began eating voraciously. The results suggest that the little-studied brain region may have a role in eating behavior.
Anthony van den Pol
IN THE RING A ring of nerve cells in a fruit fly’s brain helps it to fly right — and all the other directions, depending on where the insect is trying to go.
Igor Siwanowicz/HHMI Janelia Research Campus
A GAIN ON PAIN During painful procedures, newborns’ brains show a spike in activity that can be detected with electrodes on the scalp, a new study suggests. Monitoring such activity could one day provide an objective measurement of pain.
Department of Paediatrics, Medical Sciences Division, University of Oxford