True extinction is final, a point of no return where a species disappears forever. And sadly, species go extinct all the time ...

On one of the final days of 1938, a fishing trawler off the coast of South Africa reeled in a massive creature unlike anything the crew had seen before. It was nearly five feet in length, and its fins ...

Some animals once believed extinct have stunned scientists by reappearing decades, centuries, or even millions of years after vanishing from the fossil record or disappearing from human observation.

A tree that was declared extinct nearly two centuries ago has resurfaced in Brazil, which scientists have deemed an "incredible find." The Pernambuco holly (Ilex sapiiforumis) was found by scientists ...

For thousands of years, scientists knew of two tiny marsupials in New Guinea only through fossils and local legend. Researchers had long considered these species extinct. However, a team recently ...

Sometimes, nature delivers a surprise that feels almost miraculous. Scientists have confirmed that two small marsupial species — the pygmy long-fingered possum and the ring-tailed glider — are still ...

Victorian grassland earless dragons were classified as extinct in 1969. Conservation efforts are underway to ensure the past ...

A century-old, endangered Walbridge apple tree dwarfs Allison Robenstein, left, volunteer coordinator, and Hunter Hall, the marketing and events coordinator, as they walk through the apple orchard at ...

Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. On a remote peninsula in Indonesian Papua, a species long thought ...