For scientific souls interested in evolution, geology, biology, and ecology…this book is a first-class time machine! And we're going deep—up to 550 million years ago—on this mind-boggling "journey through earth's extinct worlds." A paleobiologist with a knack for poetic and propulsive prose, Thomas Halliday whisks you off to fascinatingly foreign lands, from the "watery Mars"-like environment of the Ediacaran era to the Mammoth Steppe where early humans painted pictures of cave lions. Making the unfathomable vividly immediate, Otherlands is a magnificent natural history of Earth!