In many Mexican cities, water is treated as a political bargaining chip – a favor that public officials can trade for votes, bribes or power.

Farmers don't like living near big predators like leopards, but new research shows the carnivores provide a vital ecological service.

The Interior Department is narrowing protection for migratory birds to cover only deliberate harm such as hunting, but not threats like development or pollution that kill millions of birds yearly.

Fake news may be hard to spot, but fake arguments don’t have to be.

Many states currently are poorly equipped to assume the responsibility of caring for their threatened wildlife.

The trouble is, almost all animal populations today are facing increasing stress from changing environments.

Guam’s birds have been killed by invasive snakes. Now trees struggle to spread their seeds.