These great beasts, or “megafauna,” lived on every habitable continent and on many islands. With a handful of exceptions, all are now gone.What caused the disappearance of these prehistoric behemoths? No one event can be pinpointed as a specific cause, but several factors may have played a role. Paleomammalogist Ross D. E. MacPhee explores them all, examining the leading extinction theories, weighing the evidence, and presenting his own conclusions. He shows how theories of human overhunting and catastrophic climate change fail to account for critical features of these extinctions, and how new thinking is needed to elucidate these mysterious losses.Along the way, we learn how time is determined in earth history; how DNA is used to explain the genomics and phylogenetic history of megafauna—and how synthetic biology and genetic engineering may be able to reintroduce these giants of the past. Until then, gorgeous four-color illustrations by Peter Schouten re-create these megabeasts here in vivid detail.

    As in her bestseller Red-Tails in Love, Winn explores a once-hidden world in a series of interlocking narratives about the extraordinary denizens, human and animal, of an iconic American park.

    In this illuminating, in-depth Q & A, “America’s storyteller” lets readers in on his philosophical approach to understanding our nation’s past, as well as a little family secret for overcoming your fears.Tom Roston is a veteran journalist who began his career at The Nation and Vanity Fair magazines, before working at Premiere magazine as a senior editor. He writes a regular blog about nonfiction filmmaking on PBS.org and he is a frequent contributor to The New York Times. He lives with his wife and their two daughters in New York City. Cover design by Adil Dara.

    New stadiums in this completely revised and updated edition include Citizens Bank Ballpark (Philadelphia), PETCO Park (San Diego), and the newly renovated RFK Stadium (Washington, D.C.) home to the Washington Nationals. Crammed with the statistics baseball fans love, Take Me Out to the Ballpark will hit a home run with legions of new readers this fall.

    Angier takes readers on a mesmerizing tour of female anatomy and physiology that explores everything from organs to orgasm, and delves into topics such as exercise, menopause, and the mysterious properties of breast milk.A self-proclaimed "scientific fantasia of womanhood." Woman ultimately challenges widely accepted Darwinian-based gender stereotypes. Angier shows how cultural biases have influenced research in evolutionary psychology (the study of the biological bases of behavior) and consequently led to dubious conclusions about "female nature." such as the idea that women are innately monogamous while men are natural philanderers.But Angier doesn't just point fingers; she offers optimistic alternatives and transcends feminist polemics with an enlightened subversiveness that makes for a joyful, fresh vision of womanhood. Woman is a seminal work that will endure as an essential read for anyone intersted in how biology affects who we are as women, as men, and as human beings.

    But it was not until many years after veterinary school, when she was transporting a chimpanzee named Pierre away from a biomedical facility as part of her job as a conservation advocate in Cameroon, that Dr. Speede discovered her true calling. She began to search for land for a forest sanctuary for captive chimpanzees that were held on chains and in small cages at local hotels.Dr. Speede eventually founded the Sanaga-Yong Chimpanzee Rescue Center, a forested home for orphans of the illegal ape meat trade. One chim- panzee, Dorothy, was rescued by Dr. Speede and her colleagues from a bleak existence imprisoned on a chain and forged a deep friendship with her. Dr. Speede explains how chimpanzees, like humans, are capable of a broad spectrum of emotional behaviors—both hateful and loving. Dr. Speede also candidly reveals her own struggles as a stranger in a foreign culture trying to adjust to rural African village life. And she admits that unlike Dorothy, she was not always kind, gentle, and forgiving.Dorothy died of old age at the sanctuary, and a photograph of Dorothy's funeral, in which Dr. Speede cradled Dorothy's head while her family of chimpanzees mournfully viewed her body, went viral after being published in National Geographic. The world was surprised at the depth of the chimps' grief at the loss of their friend, but Dr. Speede was not. Through the chimps, she had come to understand the meaning of love, loyalty, and true connection.While this is a compelling story about the emotional complexity of the chimpanzees she rescued and befriended, it is also Dr. Speede's story. Major events in her personal life, including love affairs, dangerous run-ins with criminals, and the birth of her daughter, unfold as the development of her primate rescue center runs parallel to her own development. Ultimately, Kindred Beings is a story of profound resilience, of both the apes and the woman who loved them.

    In How to Clone a Mammoth, Beth Shapiro, evolutionary biologist and pioneer in "ancient DNA" research, walks readers through the astonishing and controversial process of de-extinction. From deciding which species should be restored, to sequencing their genomes, to anticipating how revived populations might be overseen in the wild, Shapiro vividly explores the extraordinary cutting-edge science that is being used--today--to resurrect the past. Journeying to far-flung Siberian locales in search of ice age bones and delving into her own research--as well as those of fellow experts such as Svante Paabo, George Church, and Craig Venter--Shapiro considers de-extinction's practical benefits and ethical challenges. Would de-extinction change the way we live? Is this really cloning? What are the costs and risks? And what is the ultimate goal?Using DNA collected from remains as a genetic blueprint, scientists aim to engineer extinct traits--traits that evolved by natural selection over thousands of years--into living organisms. But rather than viewing de-extinction as a way to restore one particular species, Shapiro argues that the overarching goal should be the revitalization and stabilization of contemporary ecosystems. For example, elephants with genes modified to express mammoth traits could expand into the Arctic, re-establishing lost productivity to the tundra ecosystem.Looking at the very real and compelling science behind an idea once seen as science fiction, How to Clone a Mammoth demonstrates how de-extinction will redefine conservation's future.