The scientists collected core samples from 25 Scots pine trees and stem discs from 54 juniper shrubs, creating paper-thin sections that they stained with special dyes. Under a microscope, normal ...

More than 50,000 are under evacuation orders or warnings as a new wind-driven wildfire spreads in the mountains north of Los Angeles.

The Malus coronaria learned to fight frost by blooming two or three weeks later than the trees that produce cultivated ...