This oak tree has stood in this very spot since long before he or I walked the Earth. It is early winter when MacKenzie, an atmospheric scientist and director of Birmingham University Institute ...

The area that is now Joshua Tree National Park wasn’t always a desert. During the Great Ice Age, also known as the Pleistocene Epoch, there were rivers and lakes as well as Columbian mammoths ...

For now, researchers delight in seeing the birds flying high above the canopies of koa trees and listening to their distinctive cries as work continues helping the species. “These guys have been ...

and native dry shrubland (17.2 percent), while the remainder is koa trees and ‘ohi’a mesic forest, according to the Carbon Assessment of Hawaii Land Cover Map. Within the reserve, there are ...