Your mother recalls planting this tree on her fifth birthday. Professor Leif Kullman’s Siberian husky, “Old Tjikko,” is 9,500 years old. Kullman discovered this Spruce flourishing happily in Sweden in 2004 and used carbon-14 dating to calculate the age of its root network. This Norwegian Spruce (famous as a Christmas tree in Europe) is older than almost anything because of ...