Anthropology's Cynthia Beall discovers that Tibetan women are evolving

Scientists discovered humans are still actively evolving

Popular Mechanics: Cynthia Beall, Distinguished University Professor Emerita in the Department of Anthropology, found that Tibetan women with the most live births had higher oxygen saturation despite lower hemoglobin, revealing ongoing natural selection for traits that enhance oxygen delivery at high altitude. She said multiple biological and sociocultural factors work together to boost reproductive success under extreme hypoxic stress.