Invasive predators and other threats have pushed the Key Largo woodrat to the brink. A small but passionate group of scientists and volunteers is pushing back.

Embryos of one of the world's most unusual amphibians become art in the eyes of a biologist and wildlife photographer.

Scientists hatch a bold plan to save Brazil's critically endangered golden lancehead, which lives on a single infamous isle.

Conservationists hope to protect the Mexican long-nosed bat by working with ranchers and other locals to preserve the plant it needs.