Our knowledge of the tree of life—a phylogenetic tree summarizing the evolutionary relationships among all life on Earth—is expanding rapidly. “Mega-trees” with millions of tips (species) are expected to appear imminently ( for example, see http://www.opentree.wikispaces.com ). Unfortunately, there has so far been no practical and intuitive way to explore even the much smaller trees with thousands of tips that are now being routinely produced. Without a way to view megatrees, these wondrous objects, representing the culmination of decades of scientific effort, cannot be fully appreciated. The field really needs a solution to this problem to enable scientists to communicate important evolutionary concepts and data effectively, both to each other and to the general public. Just like Google Earth changed the way people look at geography, a sophisticated tree of life browser could really change the way we look at the life around us. Our advances in understanding evolution are moving really fast now, but the tools for looking at these big trees are lagging behind. Displaying large trees is a hard problem that has so far resisted solution. We are still waiting for the equivalent of a Google Maps. However, trees with millions of tips, richly embellished with additional data, can now be easily explored within the web browser of any modern hardware with a zooming user interface similar to that used in Google Maps.
Via Sakis Koukouvis, Dr. Stefan Gruenwald, Robin Lott
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