What’s the Oldest Living Thing?

Trees transcend human generations – but are they the oldest living things on Earth? CrowdScience listener William from London, UK, got in touch to ask what the oldest tree or other organism on our planet is. Presenter Marnie Chesterton heads out to meet one of our older arboreal cousins to see how we can work out its age - without cutting it down to count the rings. But whilst certain individual trees can live for thousands of years, some that live in colonies can survive for much longer – perhaps up to 80,000 years old. Along the way, Marnie asks what other organisms contend for this title, what the word ‘oldest’ really means, and even ponders whether some creatures could actually be immortal.

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Presenter: Marnie Chesterton
Producer: Jen Whyntie

(Image: Ancient Bristlecone Pine Forest. Credit: Getty Images)