Q: How old is the oldest tree?
A: If you want to know about a currently living tree, then this is it. Ten thousand feet up in California's White Mountains lives the oldest living thing on Earth. It is a bristlecone pine that was around when the Egyptian Pyramids were built. Ironically, after weathering all the droughts, high winds, and lightning strikes that must have struck over the millennia, the nearly 5,000-year-old Methuselah Tree now faces threats from the one force of nature that seemingly can do it harm: people.