Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

This photo shows how gigantic an Irish Elk looks compared to two humans. Megaloceros giganteus - literally "giant horn" - is ...

Some species officially bid us farewell this year. They may have long been gone, but following more recent assessments, they’re now formally categorized as extinct on the IUCN Red List, considered the ...