In the April 1 SN: Digital tech on the brain, cancer’s sweet spell, elephant sleep stats, ancient stardust spotted, a hydrothermal cradle of life, nutrition in a changing climate, nesting-doll parasitism, a neutrino trio and more.
OXYGEN DEPRIVATION Cancer cells (shown in blue) surround a blood vessel (red) in a mouse tumor. Cells on the tumor’s edge are dying, starved of oxygen. But treatments to starve tumors have come up short.
C. Michiels, C. Tellier and O. Feron/Biochimica et Biophysica Acta 2016
EBOLA BY THE NUMBERS Looking at some key risk factors may help health care workers triage Ebola patients.
U.K. Department for International Development/Flickr (CC BY 2.0)
STOMACH SURGERY Gastric bypass surgery reduces the size of the stomach and shortens the digestive path for food. While performed for weight loss, the procedure may also bring long-term remission of diabetes.