As some conservationists and researchers begin to return large carnivores to areas where they once roamed, scientists intensify efforts to study the ecological roles of predators.

The release of gray wolves in Yellowstone decades ago still stands as one of the few examples of a predator reintroduction, and the lessons learned continue to be debated. New projects aim to do it again.

Conservation biologist John Ewen discusses the recent reintroduction of Tasmanian devils to mainland Australia after a 3,000-year absence and issues that need to be considered when bringing long-departed animals back into an area.

Experts warn that an explosion of hooded vulture deaths in Guinea-Bissau could push the critically endangered species to the brink of extinction.

A study of the animals using blue light reveals what humans are not able to see with the naked eye.

A population of North Island robins in a New Zealand sanctuary provides a unique system for investigating the memory skills of birds in the wild.

Buzzfeed uncovers trophy hunters among the ranks of the International Union for Conservation of Nature, which, critics say, may be impeding wildlife protection.

They’ve survived volcanic eruptions, but one Caribbean island’s mountain chicken frogs might need help from scientists to escape the lethal chytrid fungus.

Peek inside the effort to save this critically endangered Caribbean frog species.