Northwest geologist hot on the trail of Ginkgo lava flow opb.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from opb.org Daily Mail and Mail on Sunday newspapers.
Mummified mice found on mountain summits on the Chile-Argentina border have re-defined what we know about the limits of mammals – and they may help the search for life on other planets.