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The Humble Beaver: Troublemaker or Climate Superhero?

DispatchMontana, WestAlisa Opar
Beavers create rich habitats and act as buffers against the effects of drought and wildfire—spurring efforts to pinpoint new ways to help us coexist with North America’s largest rodent.

Spring Break

DispatchMontanaAlisa Opar
Bison go from seasonal outlaws to year-round residents in a large swath of Montana.

Frog vs. Fish

DispatchCaliforniaAlisa Opar
How cutting-edge technology may save endangered amphibians from hungry trout in Yosemite’s alpine lakes.

Unbearable Decisions

ExplainerUnited StatesAlisa Opar
To kill or not to kill: How wildlife officials decide what to do with “problem bears.”

Not-So-Vacant Lots

DispatchNew Orleans, LouisianaAlisa Opar
From birds to trees to rats, post-Katrina New Orleans is a study in “disaster ecology.”

Roam, Roam on the Range

DispatchMontanaAlisa Opar
This Montana cattle ranch is trying to ensure its operations benefit wildlife—and yes, that means wolves, too.

Rat Pack

DispatchNew York CityAlisa Opar
New York is the city that never sleeps—and neither do its rat researchers.

Fish Out of Water

DispatchCaliforniaAlisa Opar
Scary-low snowpack may spell disaster for some California wildlife and ecosystems.

The Glow Man and the Sea

Latest NewsUnited StatesAlisa Opar
This summer John Sparks will don a 530-pound suit and plunge 1,000 feet into the Atlantic—all to find some Day-Glo fish.