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Watch this video (6:30), play with the interactive version of the 'Tree of Life' and sign up to Tree of Life updates at http://www.wellcometreeoflife.org. This six-minute Tree of Life video appeared on the BBC One programme 'Charles Darwin and the Tree of Life' narrated by David Attenborough.

But now, a century and a half later, scientists from 11 different institutions have joined forces to amass all of that information, plus new data, to create the most comprehensive version of the tree so far. As detailed in a recent article in Proceedings of the National Academy of Sciences, the new Tree of Life shows how 2.3 million different types of animals, plants, fungi and microbes are interconnected, and how those relationships have diverged since life began on Earth more than 3.5 billion years ago.