Bristlecone pine

World’s ‘oldest’ tree able to reveal planet’s secrets

In a forest in southern Chile, a giant tree has survived for thousands of years and is in the process of being recognized as the oldest in the world.

Known as the "Great Grandfather," the trunk of this tree measuring 4 meters in diameter and 28 meters tall is also believed to contain scientific information that could shed light on how the planet has adapted to climatic changes.