Farms and cities use so much of the Colorado River's water that little remains for the river's own ecosystem. Will negotiators save what's left?

Nearly two dozen U.S. senators urged the U.S. Department of Agriculture, in a letter, to "prioritize" a vaccine strategy for ...

Scientists say dolphins and orcas have teamed up to hunt salmon off British Columbia. It’s the first time such behavior has ...

Found across much of these eastern U.S. during the winter, these tiny birds can be tough to spot—providing a fun challenge ...

Wander through a botanical wonderland outside Phoenix, Arizona complete with canyon views, rare plants, wildlife sightings, ...

The first step for novices, Tan says, is simply to get outside and look around. You can start by taking note of the birds you ...

Scientists tracking young Arizona Bald Eagles found that many migrate north during summer and fall, bucking the traditional southbound pattern of most birds. Their routes rely heavily on historic ...

One student's research project shows that birdwatching isn't only a fun hobby. It also has the power to direct birding research.