From the mountains of Ethiopia to the ice floes of the Arctic, numerous species could be pushed to the brink. Here’s how.

Habitat destruction is the biggest threat facing ruffed lemurs. But it's a problem we can fix.

Residents will vote on a ballot measure to reintroduce endangered gray wolves. There’s a strong ecological argument for why they’re needed, says biologist Joanna Lambert.

Cat Tale, a new book by journalist Craig Pittman, takes us on a wild ride into the science and politics of saving an iconic species. 

Kanab, a small Utah town that’s home to the famous Best Friends Animal Society, took an unconventional path to face down a frac sand mine that threatened the region’s aquifer.

Hundreds of blazes could push threatened species closer to extinction. But the roots of Australia’s wildlife crisis are indicative of a much larger problem.

Roads can be a danger for wildlife, but new research shows they’re particularly bad news for a species already facing declines.

Three bird species, two frogs, a shark, a famous snail and one of the world’s largest freshwater fish were among those declared extinct this year.

Expert contributors took us to the Arctic, the borderlands and everywhere in between.

The country has done a remarkable job increasing its tiger population, but that’s also created problems it isn’t addressing.