Molecules/Matter & Energy

Shaking off snake venom, flexible display screens and krill-sniffing penguins in this week's news

Snake venom no sweat for opossums

A pit viper’s hemorrhage-inducing venom is no sweat for some opossum species that devour the snakes with impunity. Now scientists at the University of Minnesota and the American Museum of Natural History in New York City have figured out why the opossums don’t give a hoot about possibly getting bitten.