In this engrossing and accessible book, Doug Macdougall explores the causes and effects of ice ages that have gripped our planet throughout its history, from th

Until about 13,000 years ago, North America was home to a menagerie of massive mammals. Mammoths, camels, and lions walked the ground that has become Wilshire B

Stunningly visual, extraordinarily detailed, powerfully dramatic, here is the first volume of a remarkable new series . . . The First Americans. When humans fir