High in the mountains of central Sweden, a quiet grove of Norway spruce trees appears unremarkable at first glance. The trunks are thin and scattered, shaped by wind and cold. Yet genetic testing has ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Trees older than empires are not as rare as you might think ...

This cross section of a sequoia in Yosemite National Park in California has markers identifying the dates of tree rings. Jared Farmer What and where are the oldest known trees on the planet? If you ...