And I'm like, 'Oh great, I ruined Christmas.'" Trick-or-treating: "I loved Halloween. When we trick-or-treated in Des Moines growing up, and would be so sweaty under my costume because I was in a ...

In each experiment, tree species were planted in blocks, creating a mosaic of forest patches of the same age and species. Some experiments were established up to 60 years ago. Tree heights were ...

O Christmas tree, O Christmas tree! These photos of First Ladies of the United States welcoming official White House Christmas trees through the years will get you into the holiday spirit The ...