Back in the ‘60s, eagles’ biggest threat was the infamous pesticide DDT, which made their eggs so weak they’d get crushed by their mothers. When the environmental movement was born, Rachel Carson’s groundbreaking book Silent Spring awakened Americans to the dangers of DDT, and the government finally banned the pesticide in 1972. Four decades later, there are around 10,000 bald eagle mating pairs in the Lower 48. Here´s how the bald eagle was saved from extinction.

Producer: Lucas Isakowitz

Supervising Producer: Allie Jaynes

Executive Producer: Michelle Nash

Illustrators: Grace Berrios and Jackie Albano

Animator: Alexa Ledesma