Species Watch

Rising CO2 levels could upset the delicate relationship between the butterflies and their parasites.

Conservation in the Congo is dangerous—but after half a century, it’s paying off for these great apes.

Scientists are still trying to understand what paralyzed and eventually killed more than 30 critically endangered Verreaux’s sifakas in Madagascar this spring.

The shockwaves elephants send through the earth via vocalizations and panic running could one day alert local authorities when poachers are near.

A new report estimates that around 700,000 tons of fishing gear are abandoned in the oceans each year. Now the good news: We can curb this.

As forests are carved up across North America, its 51 woodland caribou herds are being left with nowhere to run, nowhere to hide.

Because conservation is working—and success should be celebrated.

Scientists are using wound-healing lasers and medical-grade honeycomb to give sea turtle populations a fighting chance.

The same technology used to detect heat in the cosmos may help endangered populations lift off.

By miscounting population numbers, wildlife managers may unwittingly count out a future for species on the brink.