Hordes of Beavers Are Invading Alaska’s Tundra
Research shown at last week ’s American Geophysical Union encounter reveal that everyone ’s pet rodent has been using stick to ramp up dams on the Alaska ’s treeless tundra . The colonization is reshaping the geography of the north and could allow other animals to succeed beavers into thebrave young warming humans . It also come with a downside , though . The dams create pond that help keep beavers wet , but those ponds also contribute to thaw permafrost ....