The most visible threat to western Joshua trees is direct killing by developers, who bulldoze them by the thousands to build roads, warehouses, power plants, strip malls and vacation rentals. But ...

But there's more to this unexpected mutualistic relationship than that. These species of spider and frog have been found in the same area, and even share the same burrows. The frogs use the ...

Gene trees and species trees can be incongruent for many reasons. (A) Genes can have unequal rates of evolution. (B) Gene loss and gene duplication are common. (C) Gene flow can occur between ...

A U.S. Forest Service report called the "Checklist of Native and Naturalized Trees" suggests that America is home to more than 865 different species. Among those, we gathered the 10 most ...

Spongy moth caterpillars devour a leaf. This invasive species, originally imported from Europe, causes trees to produce toxins, which in turn can harm native moth populations. Spongy moth ...

There are 14% more tree species than previously thought, according to what researchers are calling the first "scientifically credible" estimate. Of the 73,300 estimated species, the researchers ...

J. Mason Tomlin Elementary School fifth-grader Summer Schaffer was the Gloucester County first place winner in the Conserve Wildlife Foundation of New Jersey's 18th annual "Species on the Edge ...

The oldest tree species is the Great Basin bristlecone pine (Pinus longaeva). The oldest tree of the species is named Methuselah and is more than 4,800 years old. The longevity of the Great Basin ...

Completely transplant trees and shrubbery with the EDGE Tree Spade. This economical attachment is used for a variety of applications. Available for ball sizes from 36 to 48 in., the Tree Spade ...