Earths First Steps

Download or read book Earth's First Steps written by Jerry MacDonald and published by . This book was released on 1994 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Earth Day written by Robin Nelson and published by Lerner Publications. This book was released on 2002-06-01 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: An brief introduction to the history of Earth Day and how it is celebrated.

Download or read book Earth's Water Cycle written by Robin Nelson and published by Lerner Publications ™. This book was released on 2017-08-01 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: From lakes, to clouds, to rain that falls back to Earth—discover how water changes through various processes to form the water cycle.

Download or read book First Steps written by Jeremy DeSilva and published by HarperCollins. This book was released on 2021-04-06 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Science News Best Science Book of the Year: “A brilliant, fun, and scientifically deep stroll through history, anatomy, and evolution.” —Agustín Fuentes, PhD, author of The Creative Spark: How Imagination Made Humans Exceptional Winner of the W.W. Howells Book Prize from the American Anthropological Association Blending history, science, and culture, this highly engaging evolutionary story explores how walking on two legs allowed humans to become the planet’s dominant species. Humans are the only mammals to walk on two rather than four legs—a locomotion known as bipedalism. We strive to be upstanding citizens, honor those who stand tall and proud, and take a stand against injustices. We follow in each other’s footsteps and celebrate a child’s beginning to walk. But why, and how, exactly, did we take our first steps? And at what cost? Bipedalism has its drawbacks: giving birth is more difficult and dangerous; our running speed is much slower than other animals; and we suffer a variety of ailments, from hernias to sinus problems. In First Steps, paleoanthropologist Jeremy DeSilva explores how unusual and extraordinary this seemingly ordinary ability is. A seven-million-year journey to the very origins of the human lineage, this book shows how upright walking was a gateway to many of the other attributes that make us human—from our technological abilities to our thirst for exploration and our use of language—and may have laid the foundation for our species’ traits of compassion, empathy, and altruism. Moving from developmental psychology labs to ancient fossil sites throughout Africa and Eurasia, DeSilva brings to life our adventure walking on two legs. Includes photographs “A book that strides confidently across this complex terrain, laying out what we know about how walking works, who started doing it, and when.” —The New York Times Book Review “DeSilva makes a solid scientific case with an expert history of human and ape evolution.” —Kirkus Reviews “A brisk jaunt through the history of bipedalism . . . will leave readers both informed and uplifted.” —Publishers Weekly “Breezy popular science at its best.” —Science News

Download or read book One Step from Earth written by Harry Harrison and published by Macmillan. This book was released on 1985-09 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cradle of Life written by J. William Schopf and published by Princeton University Press. This book was released on 2021-10-12 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the greatest mysteries in reconstructing the history of life on Earth has been the apparent absence of fossils dating back more than 550 million years. We have long known that fossils of sophisticated marine life-forms existed at the dawn of the Cambrian Period, but until recently scientists had found no traces of Precambrian fossils. The quest to find such traces began in earnest in the mid-1960s and culminated in one dramatic moment in 1993 when William Schopf identified fossilized microorganisms three and a half billion years old. This startling find opened up a vast period of time--some eighty-five percent of Earth's history--to new research and new ideas about life's beginnings. In this book, William Schopf, a pioneer of modern paleobiology, tells for the first time the exciting and fascinating story of the origins and earliest evolution of life and how that story has been unearthed. Gracefully blending his personal story of discovery with the basics needed to understand the astonishing science he describes, Schopf has produced an introduction to paleobiology for the interested reader as well as a primer for beginning students in the field. He considers such questions as how did primitive bacteria, pond scum, evolve into the complex life-forms found at the beginning of the Cambrian Period? How do scientists identify ancient microbes and what do these tiny creatures tell us about the environment of the early Earth? (And, in a related chapter, Schopf discusses his role in the controversy that swirls around recent claims of fossils in the famed meteorite from Mars.) Like all great teachers, Schopf teaches the non-specialist enough about his subject along the way that we can easily follow his descriptions of the geology, biology, and chemistry behind these discoveries. Anyone interested in the intriguing questions of the origins of life on Earth and how those origins have been discovered will find this story the best place to start.

Download or read book Father's First Steps written by Robert Sears and published by Harvard Common Press. This book was released on 2006-05-11 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Father's First Steps, pediatricians Robert and James Sears discuss 25 important aspects of new fatherhood, including supporting the mother during labor and beyond, bonding with baby, deciphering baby talk, being a good husband and a good father, and much more. With its emphasis on fathers taking an active role in parenting, this is a book that every new mother-to-be will definitely want their partner to read.