Area of Focus: Population Management

The Standing Rock Sioux worked with the U.S. Fish and Wildlife Service to reintroduce the endangered species to parts of the reservation

The hippos descended from ones kept by drug kingpin Pablo Escobar

The rare frogs were once thought to be extinct

The owls are head-started and released as breeding pairs

To understand why coyotes attack humans, researchers examined what the canids were eating

Researchers compared lethal and nonlethal methods to reduce pressure on salmon in Pacific Northwest

Donkey activity patterns may affect vegetation around desert wetlands

Cold weather and increased snowpack threaten deer

In Chicago, geese just went to the park for a while