Very cool 4-minute movie about the broad ecological (and geographical!) impact of wolves in Yellowstone.

Posted bychrisdolan

Very cool 4-minute movie about the broad ecological (and geographical!) impact of wolves in Yellowstone.

Originally shared by David Brin

Really interesting… how wolves change rivers.  

http://www.filmsforaction.org/watch/how-wolves-change-rivers/#.UwFsdgX2g9o.email

http://www.filmsforaction.org/watch/how-wolves-change-rivers/#.UwFsdgX2g9o.email