Some species officially bid us farewell this year. They may have long been gone, but following more recent assessments, ...

QUITO, Ecuador (AP) -- Conservationists working around the largest volcano on the Galapagos Islands say they have found 30 hybrid giant tortoises partially descended from two extinct species, ...

New research finds extinction rates have been declining for a century, challenging assumptions of an ongoing mass extinction.

Reports that a rare Bolivian killifish thought to be extinct has been found alive would be a landmark moment for conservation biology, but based on the material available here, I cannot verify any of ...

The world still holds its secrets. Hidden under wet rocks, in the ocean’s twilight crevices, and in the minutiae of the ...

Not every extinct animal vanished in plain sight. Some disappeared into remote regions humans barely study. This list ranks ...

Curitiba, Brazil used to be forests, wetlands, fields and streams before it was developed over the last half-century. Gilberto Jacob via Unsplash As new species are discovered around the world, others ...