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.

A citizen scientist's wildlife photo helped researchers confirm two marsupial species thought extinct for over 7,000 years are still alive.

How do you save a species on the brink of extinction? According to the International Union for Conservation of Nature (IUCN), the Red List currently includes more than 169,000 assessed species, with ...