BORN OF ICE & FIRE: How Glaciers and Volcanoes (with a Pinch of Salt) Drove Animal Evolution

An exploration of how the Cryogenian Period, when our planet was covered in ice for millions of years, created today's remarkable biodiversity. The journey navigates the wild swings between hot and cold climates, oxygenation and asphyxiation, biological radiations and extinctions, asking how such instability relates to the grander forces that brought our planet to its modern state. Illus.