Turkeys got help for 75 years from conservation agencies. Coyotes spread across half the country all on their own. Why have these animals succeeded? How have they changed the environment?

Ultralight aircraft are guiding crane chicks toward Florida wintering grounds. Dangers remain, but it’s a step ahead for Americas’ largest flying bird, once reduced to 21 animals.

Coral reefs are the ocean’s biodiversity hotspots, but a new study finds that one-third of reef-building corals are under some threat of extinction.

Study shows the wisdom of allowing fish stocks to recover. Production is higher, but costs are lower. What would it take to bring economic and environmental sanity to the fishing industry?

Just after humans reached the Western Hemisphere, many large mammals went extinct. Some scientists have blamed hyper-effective human hunting. But a new study fingers changes in climate and environment.

Feeling burned? Farmed salmon have higher levels of a brominated flame retardant than wild salmon.

Endangered species profiles: Mexican wolf, Houston Toad, Sumatran Rhino, Mountain Gorilla, Mountain mist frog, red-crowned cranes, Delhi Sands flower-loving fly, beluga sturgeon, Higgins’ eye pearly mussel, West Indian manatee, piping plover, Higgins’ eye pearly mussel

In a wilderness, roads can interrupt migration corridors; kill wildlife through vehicle impacts, block movement of surface water; compact soil, harming burrowing animals and changing groundwater flow; cause air pollution and traffic noise; and allow invasive species to enter.

Monkeypox, AIDS, SARS: Are more diseases jumping from animals to people, or is it just our imagination?

A new study reveals rapid evolution of white-footed mice in Chicago, in just 150 years.