Great Lakes Wild

Since the 1900's, this uninhabited island in Lake Superior has been a constant battleground between moose and wolves. Scientists have been watching closely since 1953, making it one of the oldest research projects in the country.

Flying squirrels leaping through the air is quite a sight - especially for researchers who know they're not supposed to be there.

Sometimes animals get a second chance. One of those is the elk, which went extinct in Ontario, but is now recovering after being re-introduced.

As far as invasive species go, Asian carp are some of the nastiest invaders around. They've thus far made their way up America's waterways, snaking up the Illinois river, eating voraciously, breeding quickly, and decimating native fish populations.

The Lake Erie watersnake is currently on the brink of extinction, and researchers are fighting to get it back. Thanks to the round goby, it is working.

Where animals and humans co-exist, how do you stop a bad reputation from pushing a species towards extinction? From Rattlesnakes to Cormorants, see how creatures that have bad reputations are bring dealt with when it comes to conservation.