Female (left) and male spruce cones at the Arnold Arboretum. It's a more common sight to see separate male and female cones like this. (Courtesy William "Ned" Friedman) Every spring the conifer trees ...

Stan Boutin has climbed more than 5,000 spruce trees in the last 30 years. He has often returned to the forest floor knowing if a ball of twigs and moss within the tree contained newborn red squirrel ...

Wild red spruces are beautiful evergreen trees native to mixed forests in eastern Canada around the St. Lawrence River, northern New England and the Adirondack Mountains of upper New York State.

The U.S. Forest Service almost found the answer Wednesday to the age-old riddle, “If a 78-foot Christmas tree is felled live on Facebook and the sound is muted so no one can hear, does it still kick ...