Giant sequoia (Sequoiadendron giganteum), or "bigtree" as it is often called, is among the largest and oldest of living organisms. While taller trees do exist, including its closest of kin the coast redwood, no species of tree matches its girth, and only a few species of any type manage to survive longer than these colossal giants. While the oldest accurate account of the age for a giant sequoia is 3200 years, it is suspected that specimens have survived for as long as 5000 years.