Douglas fir trees that survived the recent Frye Fire in the Pinaleño Mountains near Safford are prime habitat for endangered Mount Graham red squirrels — but those trees are threatened by tree-killing ...

A scientist helps save Crater Lake’s whitebark pine trees from an invasive fungus. In 2002, “Oregon Field Guide” told the story of how an invasive fungus called blister rust was killing Crater Lake's ...

Arizona is looking at its largest uptick in tree mortality since the early 2000s when about 1.7 million acres were affected. New Mexico saw a similar pattern, though surveys done earlier this year don ...

This in-shower revitalizing scalp solution by Dr. Groot will come into your life like the fairy godmother in Cinderella, ...