On her travels she has witnessed some of the daunting and brutal challenges our ancestors had to face: mountains, deserts, oceans, changing climates, terrifying giant beasts and volcanoes. But she discovers that perhaps the most serious threat of all came from other humans. When our ancestors set out from Africa there were already two other species of human on the planet: Neanderthal in Europe and Homo erectus in Asia. Both (contrary to popular perception) were intelligent, adept at making tools and weapons and were long adapted to their environments. So, Alice asks, why did only Homo sapiens survive? Part detective story, part travelogue, and drawing on the latest genetic and archaeological discoveries, Alice examines how our ancestors evolved physically in response to these challenges, finding out how our colour, shape, size, diet, disease resistance and even athletic ability have been shaped by the range of environments that our ancestors had to survive. She also relates how astonishingly closely related we all are.

    Our intimate connection with the world, skin protects us while advertising our health, our identity, and our individuality. This dazzling synthetic overview, written with a poetic touch and taking many intriguing side excursions, is a complete guidebook to the pliable covering that makes us who we are. Skin: A Natural History celebrates the evolution of three unique attributes of human skin: its naked sweatiness, its distinctive sepia rainbow of colors, and its remarkable range of decorations. Jablonski begins with a look at skin's structure and functions and then tours its three-hundred-million-year evolution, delving into such topics as the importance of touch and how the skin reflects and affects emotions. She examines the modern human obsession with age-related changes in skin, especially wrinkles. She then turns to skin as a canvas for self-expression, exploring our use of cosmetics, body paint, tattooing, and scarification. Skin: A Natural History places the rich cultural canvas of skin within its broader biological context for the first time, and the result is a tremendously engaging look at ourselves.

    King Hubbert predicted in 1956 that U.S. oil production would reach its highest level in the early 1970s. Though roundly criticized by oil experts and economists, Hubbert's prediction came true in 1970.In this revised and updated edition reflecting the latest information on the world supply of oil, Kenneth Deffeyes uses Hubbert's methods to find that world oil production will peak in this decade--and there isn't anything we can do to stop it. While long-term solutions exist in the form of conservation and alternative energy sources, they probably cannot--and almost certainly will not--be enacted in time to evade a short-term catastrophe.

    In this selection from The Body, Bill Bryson introduces us to the mysterious, and often devastating, world of disease.

    By examining fossils and DNA, Shubin shows us that our hands actually resemble fish fins, our head is organized like that of a long-extinct jawless fish, and major parts of our genome look and function like those of worms and bacteria.Shubin makes us see ourselves and our world in a completely new light. Your Inner Fish is science writing at its finest-enlightening, accessible, and told with irresistible enthusiasm.