The world's oldest living tree is "Methuselah." The tree's exact age is unknown, but experts believe it has been alive for close to 5,000 years, the U.S. Forest Service told USA TODAY in an email.

DNA samples from one of the world’s largest and oldest plants — a quaking aspen tree (Populus tremuloides) in Utah called Pando — have helped researchers to determine its age and revealed ...

Scientists have compiled the world's oldest family tree from human bones interred at a 5,700-year-old tomb in the Cotswolds, UK. Analysis of DNA from the tomb's occupants revealed the people ...

The world’s largest tree has been rigorously dated for the first time, confirming it is at least 16,000 years old. Named Pando, the tree is a quaking aspen (Populus tremuloides) with around ...

Pando is a giant aspen clone in central Utah that has been regrowing parts of itself for up to 80,000 years — but new threats ...

But the oldest tree on the list, an unnamed bristlecone ... How long you live depends partly on your place in the world; your ecological niche. The organisms at the top of the food chain have ...