Uncategorized

  1. Anthropology

    Africa’s first herders spread pastoralism by mating with foragers

    DNA unveils long-ago hookups between early pastoralists and native hunter-gatherers in Africa.

    By Bruce Bower
  2. Health & Medicine

    A fungus weaponized with a spider toxin can kill malaria mosquitoes

    In controlled field experiments in Burkina Faso, a genetically engineered fungus reduced numbers of insecticide-resistant mosquitoes that can carry malaria.

    By Tina Hesman Saey
  3. Chemistry

    Vaping the sweetener sucralose may produce toxic chemicals

    Sucralose in e-liquids can break down, increasing toxic aldehydes in vapors and producing harmful organochlorines, including a potential carcinogen.

    By Carolyn Wilke
  4. Astronomy

    Questions about solar storms, slingshot spiders and more reader feedback

    Readers had questions about solar storms, a robotic gripper, slingshot spiders and more.