"A long time ago, as glaciers retreated from North America, some arctic butterflies stayed behind. The Earth was warming and so they fluttered up mountain slopes, to where it was still cold. As the climate continued to change, the arctic butterflies continued to climb, toward the summits — and then, where?"

"With the wolf population dwindling in a Michigan park, four were trapped in Ontario and transported by helicopter"

"U.S. wildlife officials plan to lift protections for gray wolves across the Lower 48 states, re-igniting the legal battle over a predator that’s running into conflicts with farmers and ranchers as its numbers rebound in some regions."

"A disputed federal oil and gas lease sale in Wyoming that ended Friday was among the biggest recently in the state, bringing in almost $88 million amid environmental groups’ concern that drilling the public land could imperil migrating wildlife and a ground-dwelling bird."

"The House voted on Tuesday to overturn President Trump’s declaration of a national emergency on the Mexican border, with just 13 Republicans joining Democrats to try to block his effort to divert funding to a border wall without congressional approval."

"On Aug. 7, 2012, David Bernhardt went to bat for the American eel. Theirs seemed an odd alliance — slippery, even, to some."

"The Australian government has confirmed the extinction of a small rodent native to a tiny spit of sand in the northernmost part of the Great Barrier Reef ― the first known mammal lost to human-caused climate change."

"A prominent Chinese businesswoman dubbed the “Ivory Queen” was sentenced to 15 years in prison by a Tanzanian court on Tuesday for smuggling the tusks of more than 350 elephants, weighing nearly 2 tonnes, to Asia."

"Only a few short weeks after President Donald Trump nominated David Bernhardt, a former oil and agriculture industry lobbyist, to run the Interior Department, the agency is facing a slew of new allegations that top officials violated federal ethics rules by keeping cozy ties to their former employers."