Amphibians

This year we bid farewell to two lost frogs, the Chinese paddlefish, a plant from New Hampshire, and many others.

This will be a critical year for several endangered and threatened species, as well as a time of opportunity for others.

New research compiles the “heat tolerance” of 616 amphibian species — and reveals how much more we need to know.

These golden jewels have vanished from Panama’s streams, but there’s still hope for the critically endangered Panamanian golden frog.

Invasive predators have cornered these endangered Patagonian frogs in the last remnant of their habitat.

Dozens of frogs, fish, orchids and other species — many unseen for decades — may no longer exist due to humanity’s destructive effects on the planet.

Scientists have rediscovered the endangered Mindo glassfrog, which hasn’t been seen in decades. And it’s just one of many remarkable species they’ve found in an at-risk habitat.

The Mindo harlequin toad, last seen in Ecuador in 1989, was feared a victim of the amphibian-killing chytrid fungus. Have other lost species survived, too?

Our desire for the companionship of exotic pets from around the world has fueled the spread of disease.

Diseases can cause animal populations to decline or even go extinct. And they’re often worsened by environmental threats caused by people.