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 ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...

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 ...

Not all animals have the name recognition of a T. rex or a dodo. However, plenty of well-known animals have vanished from the earth. These are just a few of the animals you didn't realize went extinct ...

Few people know that the Zebra had a close relative, native to South Africa, that went extinct in the late 1800s. Here’s its story. Countless species have come and gone in the short history of life on ...

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 ...

Back in 1999, the BBC’s Walking with Dinosaurs series spawned a new format: wildlife “documentaries” featuring long-extinct animals. I’m a big fan of this genre, and Prehistoric Planet: Ice Age, made ...

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 ...