revelarts
02-28-2015, 11:44 AM
Micheal Criton mentioned this in his book "State of Fear".
How humans tried to "conserve" Yellowstone park by killing all the wolves 70 years ago but they found that that caused a downward cascade in the whole area. the dear increased, the beaver decreased and the whole landscape deteriorated.
Here a short piece on what happened when wolves were reintroduced into the park.
https://www.youtube.com/watch?feature=player_embedded&v=ysa5OBhXz-Q
How humans tried to "conserve" Yellowstone park by killing all the wolves 70 years ago but they found that that caused a downward cascade in the whole area. the dear increased, the beaver decreased and the whole landscape deteriorated.
Here a short piece on what happened when wolves were reintroduced into the park.
https://www.youtube.com/watch?feature=player_embedded&v=ysa5OBhXz-Q