Humans change the urban landscape with religious, cultural and political activities, which in turn can influence the ...

Ecologists are concerned that forest ecosystems will not keep pace with a rapidly changing climate, failing to remain healthy ...

The saguaro cactus is the iconic plant of the Arizona borderlands, and in June and early July, its fruit ripens.

Ancient wooden tools found at a site in Gantangqing in southwestern China are approximately 300,000 years old, new dating has ...