Uncover the surprising ancient origins of mammals, a storythat began long before the dinosaurs' reign. Surveying Earth'stumultuous past reveals how some of our earliest ancestors,the therapsids – creatures that looked like reptiles but werestarting to develop mammalian traits – survived multipleglobal catastrophes. Through remarkable adaptations likeburrowing and the emergence of warm-bloodedness, they forged alineage that persevered against all odds. Fascinating fossilclues and cutting-edge science reveal how a small, resilientgroup of animals faced extinction events, outlived giants,and ultimately gave rise to the diverse world of mammals weknow today, including us.
