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This week, we talk with The Colorado Sun about new state legislation that will allow psychologists who do not have medical degrees to prescribe medication under some conditions. We also discuss the invasive zebra mussels that are becoming a problem at Highline Lake State Park.

Across the West, the increasing prevalence of invasive plants, and the growing influence of climate change, is changing the relationship between vast rangelands, drought, and wildfire.

The lab going up in Boise, Idaho, will be part of a new, larger U.S. Geological Survey building. And it would test environmental DNA, or eDNA, from around the nation. That is, instead of trying to find an invasive animal, like a single mussel or fish in a lake, scientists could just sample water to test for DNA of certain species.

Herds of mountain goats occupy mountain ranges all around the Mountain West. Not all are native, though, and some of those transplants are causing...

Feral pigs cause an estimated $1.5 billion in damage each year, especially to crops. Now concern is mounting they could be at the doorstep in parts of the…

Invasive animals are posing a major threat to national parks throughout the country, according to a new paper published in the journal Biological...

Wildfire is a continual threat in the West, but researchers say an invasive species of grass that’s taking hold in states like Colorado, Wyoming, Nevada...

A new species of tumbleweed is more vigorous and invasive than ones we've seen in the past. Its range could spread throughout the Mountain West.

Invasive insects and diseases are killing tree species in forests across the U.S., and in turn, weakening one of the planet's natural ways to fight...

CLARKDALE, Ariz. (AP) - Matt Johnson treks along an Arizona riverbank and picks out a patch of yellow-tinged tamarisks. He sweeps a cloth net across the…