The Vital Question: Energy, Evolution, and the Origins of Complex Life

English biochemist Lane, whose previous book, Life Ascending, won the 2010 Royal Society Prize for Science Books, combines elegant prose and an enthusiasm for big questions as he attempts to peer into a "black hole at the heart of biology." Scientists "have no idea why cells work the way they do," nor "how the parts evolved," though as Lane points out, eukaryotic cells%E2%80%94the building blocks of all multicellular life%E2%80%94share multiple complex structural and functional features. With impeccable logic and current research data, he makes a case for a common ancestor of all multicellular life%E2%80%94one created by a singular endosymbiotic event between a bacterial cell and an archaon cell that became the cell-powering mitochondrion. Lane walks readers through the details of how bacteria alone could have become metabolically diverse but not structurally complex. He then shows how the addition of mitochondria to the equation allowed a shift in energy flow through the cell, and how the migration of DNA introns from mitochondria DNA to the cell nucleus provided a wealth of new genetic material on which evolution could operate. The science is both a puzzle and a dance; Lane retains a sense of wonder as he embraces a bold hypothesis and delights in the hard data that gives it weight. (July)