In the 1950s, scientists noticed a troubling trend: around the world, peregrine falcons were disappearing, and no one could figure out why.

Revered for their admirable hunting skills and impossible speed, the potential loss of peregrine falcons was devastating to bird lovers everywhere. In this episode of This Is Wild, we’ll uncover how a powerful combination of amazing science, policy shifts and public outcry led to one of conservation’s biggest wildlife success stories.

To learn more about peregrine falcons and DDT, you can go to www.wwf.ca/thisiswild.

If you have any questions or suggestions for the show, you can email us at [email protected].