A mass extinction is when big percentage of all species die off. The best-known mass extinction is probably the one that ...

"The forest wouldn’t be there without these birds.” Scientists celebrate as island sees comeback of once-extinct species: 'A ...

Three of the species included in today’s notice are from the territory of Puerto Rico: the Culebra skink (Culebra and the ...

The major U.S. Fish and Wildlife Service’s proposal would declare the iconic species as threatened, with federal scientists ...

Conservation efforts have proven to be effective at saving at-risk wildlife species and habitats. Regular technological ...

Arizona is home to unique and rare creatures including jaguars, ocelots and condors. However, 48 species are endangered or ...