Once written off as extinct, the silver-backed chevrotain forces scientists to confront how much of biodiversity still lives ...

The search for life on Earth is speeding up, not slowing down. Scientists are now identifying more than 16,000 new species each year, revealing far more biodiversity than expected across animals, ...

Even as some scientists search for signs of life beyond Earth, other researchers have been discovering new species on our own humble planet faster than ever before. From high up in the mountains to ...

This year, at least six animal and insect species moved to the Extinct category of the IUCN Red List of Threatened Species Kelli Bender is the Pets Editor at PEOPLE. She has been working at PEOPLE ...