An expansive investigation into the most unifying and enduring structure in the history of life—and a story of biological richness at a moment when so much of our precious biodiversity hangs in the balance. Eggs are the origins of ninety percent of the Earth’s organisms. They can be found as far apart as deep-sea volcanoes and in space. Yet despite their fundamental importance, eggs often find themselves an afterthought in the discussion of evolution of life on Earth as the interests of scientists congregate around the things that emerge from eggs rather than the eggs themselves. In his new book Infinite Life: The Revolutionary Story of Eggs, Evolution, and Life on Earth, Jules Howard explains—with great passion, authority, expertise, and infectious enthusiasm—why it’s time to give eggs their moment in the spotlight: it is the eggs that can teach us new and surprising lessons about Earth’s history, the trials of life, and the exceptional ways in which natural selection operates to propagate the survival of individual species. Infinite Life: The Revolutionary Story of Eggs, Evolution, and Life on Earth, offers a wholly new perspective on the animal kingdom, and, indeed, life on Earth. By examining eggs from their earliest histories to the very latest fossilized discoveries—encompassing the myriad changes and mutations of eggs from the evolution of yolk, to the hard eggshells of lost dinosaurs, to the animals that have evolved to simultaneously give birth to eggs and live young—Howard reveals untold stories of great diversity and majesty to shed light on the huge impact that egg science has on our lives.