The Tree of Life Is Back

For those of you who grew up with a typology for biology as neat as the periodic table was for chemistry, you know the frustration that the various permutations the tree of life has undergone, including breaking into various zones — and we won’t mention that the periodic table has had its own reasons to be made more flexible. *Frustrate no more!* It looks like there’s an emergent synthesis that might make holding a visualization of the varieties of life in your head possible once more. (You are, however, going to need a slightly bigger head.)

Details are available at [PNAS]( (Link is to PDF.)