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 ...

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are nowhere to be found. From human activity to climate change, new animals ...

A biotech company says CRISPR could revive extinct animals like the dodo and mammoth — but many scientists remain skeptical.

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 ...

A stunning butterfly classed as extinct for 30 years has been spotted across parts of England. The Large Tortoiseshell has ...