Add Yahoo as a preferred source to see more of our stories on Google. Swaying trees crackled amid frigid temperatures in northern Minnesota as an arctic mass swept the region on Thursday, January 22.

Understanding the biodiversity of forests is crucial to their conservation or restoration. Collecting “external DNA” left behind by animals is a good way to find out what lives there without having to ...

'Oh my god!' says the camera-person as they video the swaying trees -- and capture the moment a tree snaps and falls towards them. 'Oh my god!' says the camera-person as they video the swaying trees - ...