The bluebuck, an antelope species that once lived in South Africa, favored mountainous areas where it primarily ate grasses and herbs. This now-extinct animal stood about 2.5 feet tall at the ...

Analysis - What happens when a species has not been seen by anyone for decades? Environmentalists think of these as "lost species". We do not know if they've gone extinct, or if it's simply that ...

A mole that lives in sand dunes was found in 2021 after having not been seen for more than 80 years, and a butterfly, a lizard and a frog species have also been found again in the last four years ...

In 1933, the species was declared extinct after the disappearance of the last known heath hen, Booming Ben. Conservationists announced in 2016 that they were working to restore the population.