ACNE ACCELERATOR Vitamin B12 can lead normal skin bacteria called Propionibacterium acnes (shown in artist’s rendition) to pump out pimple-producing chemicals.
V. Altounian/Science Translational Medicine
ILLEGAL IVORY Poachers stand over the body of an elephant killed for its tusks. With a genetic analysis of seized ivory, researchers have pinpointed two major poaching hot spots in Africa.
NATIVE GUY DNA from 8,500-year-old Kennewick Man’s skeleton indicates that he shared ancestry with modern Native Americans and perhaps was closely related to Northwest tribes that want to rebury his bones.