Large areas of tropical forests have been cleared due to a complex set of causes which vary by region; these include clearing forest ... Tropical forest plants regenerate either from sources ...

Huge reef systems flourished in the clear, tropical seas—evident today in ... the ancestors of spiders. The first true plants began to take root on land some 430 million years ago.

LOWER BUCKS COUNTY, PA —The Pennsylvania Department of Transportation said vegetation clearing will start Tuesday on Falls-Tullytown Road in Falls Township. Motorists are advised of the ...