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 ...

The late 1900s were a time of rapid change for our planet, and unfortunately, some of its most unique inhabitants did not survive. Between the 1980s and 1990s, several animal species disappeared ...

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," ...

Scientists have confirmed that two marsupial species — the pygmy long-fingered possum and the ring-tailed glider — are alive in New Guinea after being known only from fossil evidence for more than ...