In the world of biology, being declared extinct is usually a permanent sentence, but nature occasionally loves to prove us wrong. These incredible animals, often referred to as “Lazarus species,” ...

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 ...

So many humans live on Earth, it’s hard to imagine there are animals we haven’t seen for years, decades, or even millions of years, but it keeps happening! Animals believed extinct that were found ...

True extinction is final, a point of no return where a species disappears forever. And sadly, species go extinct all the time. But in some rare cases, animals believed to be lost for good have ...

Researchers say the remarkable discovery was made using fossils, photos and a misidentified museum specimen Arman Muharmansyah/Australian Museum Two marsupials ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

While conservation efforts have bolstered the populations of many species considered to be threatened in 2025, many animal and plant species continue to dwindle in number, with some even going extinct ...