The world's oldest living tree.

Old Tjikko (Sweden)c . . . The world’s oldest known living tree sprouted sometime during the last Ice Age, roughly 9,550 years ago. This 16-foot spruce in the Dalarna province of Sweden may look more like a Charlie Brown Christmas Tree, but don’t be fooled: this little guy’s root system got started back when the British Isles were still connected to Europe by an ice bridge. According toWired, geologist Leif Kullman, who discovered the tree, named it after his dead dog. Read the free article.