On an island in the world's largest freshwater lake, a single, isolated population of moose battle for survival against a pack of wolves. Find out how this delicate ecosystem in the midst of Lake Superior reveals invaluable scientific information on the dynamics of predator-prey relationships.

Of the more than 180 invasive species found in the Great Lakes, two in particular stand out for their indiscriminate devastation: the fast-breeding Asian carp and the deadly sea lamprey. Join the front lines of an urgent battle to limit the impact of their ecological damage.

The Lake Erie water snake, once on the brink of extinction, now looks to be rebounding--thanks mainly to the invasive goby fish that's wreaking havoc on the Great Lakes ecosystem. Can scientists studying this environmental anomaly find a healthy ecological balance?

Should a creature's bad reputation impact its survival prospects? As the venomous massauga rattlesnake edges towards extinction and cormorants in Toronto destroy the trees they nest in, accommodating these misunderstood species has never been more important.

Peregrine falcons are slowly rebounding from the edge of extinction, while snapping turtles face different life-threatening challenges. Learn about conservation efforts in Ontario, Canada to help give these threatened species a boost while they fight back.