Resultados para "Peligro" en Ciencias biológicas

In The Golden Toad, Trevor and Kyle set off to investigate an environmental mystery with unexpected revelations, a story that speaks to our own collective and uncertain future. Guided by Costa Rican naturalists—including the last person to have seen the golden toad alive—Trevor searches for survivors while Kyle hunts the killer, and their paths lead them through an imperiled forest, a deadly pandemic, and a changing climate, intertwining at the site of the golden toad's last emergence deep in Monteverde's Bosque Eterno de Los Niños.

Our insatiable demand for animals - for jewelry, pets, medicine, meat, trophies, and fur - is driving a worldwide poaching epidemic, threatening the continued existence of countless species. Rachel Nuwer, an award-winning science journalist with a background in ecology, takes listeners on a narrative journey to the front lines of the trade: to killing fields in Africa, traditional medicine black markets in China, and wild meat restaurants in Vietnam. Through exhaustive first-hand reporting that took her to 10 countries, Nuwer explores the forces currently driving the demand.

A young man is murdered for his prized pet fish. An Asian tycoon buys a single specimen for $150,000. Meanwhile, a pet detective chases smugglers through the streets of New York. Delving into an outlandish realm of obsession, paranoia, and criminality, The Dragon Behind the Glass tells the story of a fish like none other: a powerful predator dating to the age of the dinosaurs.

Isegrim kehrt nach Deutschland zurück. Der Wolf wird leider nicht nur in Märchen als böse und hinterlistig beschrieben. Wahrscheinlicher ist aber, dass Isegrim von uns Menschen als Nahrungskonkurrent betrachtet und deshalb über Jahrtausende verfolgt wurde. Dabei war die Art früher auch in ganz Europa verbreitet, wurde jedoch in West- und Mitteleuropa weitgehend ausgerottet. Deutschland wurde erst Ende der 1990er Jahre wieder besiedelt. Wölfe haben schon frühzeitig Eingang in die Mythen und Märchen vieler Völker gefunden, sie zählen daher zu den bekanntesten Raubtieren.

Most of us have heard of such popular butterflies as the Monarch or Painted Lady. But what about the Fender's Blue? Or the St. Francis' Satyr? Because of their extreme rarity, these butterflies are not well-known, yet they are remarkable species with important lessons to teach us. The Last Butterflies spotlights the rarest of these creatures - some numbering no more than what can be held in one hand.

The Monarch Butterfly Migration focuses a wider lens on the effects of climate change and the tensions between advocacy and scientific accuracy. This book reminds us to notice the natural wonders in our own backyards.

Unfair Game features the shocking results of a new inquiry Lord Ashcroft has carried out into South Africa’s lion business. He shows how tourists are unwittingly being used to support the abuse of lions he details how lions are being tranquilised and then hunted in enclosed spaces he urges the British government to ban imports of captive-bred lion trophies and he demonstrates why Asia’s insatiable appetite for lion bones has become a multi-million-dollar business linked to criminality and corruption which now underpins South Africa's captive lion industry.

Once a killing ground for whalers hunting a leviathan they called the "devilfish," the San Ignacio Lagoon in Baja, Mexico, is now an environmental and spiritual sanctuary—the only place in the world where animals in their natural aquatic environment routinely seek out human contact. A nursery for the gray whale since before recorded history, the lagoon and its stories, told here by James Michael Dorsey, illuminate the magic of human connection to animals, and what those bonds teach us about ourselves and our purpose on this shared planet.

With a shrinking wilderness and global warming, the future of the wolverine is uncertain. The Wolverine Way reveals the natural history of this species and the forces that threaten its future, engagingly told by Douglas Chadwick, who volunteered with the Glacier Wolverine Project. This five-year study in Glacier National Park—which involved dealing with blizzards, grizzlies, sheer mountain walls, and other daily challenges to survival—uncovered key missing information about the wolverine's habitat, social structure, and reproduction habits.

In Return to the Sky, Tina Morris, one of the first women to engage in a raptor reintroduction program, shares her remarkable story that is as much about the human spirit as it is about birds of prey.

Biodiversity, the diversity of life, is not only fascinating and beautiful, it is the engine of all the world's natural cycles, and the source of many of the resources on which humanity depends. Concern about biodiversity conservation is, therefore, not merely the preoccupation of a few enthusiastic naturalists—it is the lifeline business of everybody.

Conraad de Rosner is a pioneering game ranger, working with dogs to protect wildlife against poachers – both ‘bushmeat’ poachers, who use cruel snares to trap animals, and criminal syndicates killing for rhinoceros horn and capturing critically endangered pangolins, the most trafficked animal in the world. Con’s life – constantly at risk from poachers, wildlife and even his own fellow rangers – has been saved on numerous occasions by his devoted canine companions.

Twice declared extinct, North America's most endangered mammal species, the black-footed ferret (BFF), is making a comeback thanks to an evolving conservation regimen at more than thirty reintroduction sites across the continent. Lawrence Lenhart lingers at one such site in his proverbial backyard, the Aubrey Valley in northern Arizona.

Koalas regularly appeared in Australian biologist Danielle Clode's backyard, but it was only when a bushfire threatened that she truly paid them attention. In vivid, descriptive prose, Clode embarks on a delightful and surprising journey through evolutionary biology, natural history, and ecology to understand where these enigmatic animals came from and what their future may hold. She begins her search with the fossils of ancient giant koalas, delving into why the modern koala has become the lone survivor of a once-diverse family of uniquely Australian marsupials.

Once, we humans could only observe evolution. Suddenly, we had conquered it. And yet, in Life as We Made It, evolutionary biologist Beth Shapiro argues that - despite how amazing our new technologies are - our ability to alter the course of evolution isn’t new. What is new is that where once we shaped evolution through brute force, we can now do it as artisans. That power comes not a moment too soon. If we are going to survive in the next few centuries, we must revise the book of life.

In 2006, vaquita, a diminutive porpoise making its home in the Upper Gulf of California, inherited the dubious title of world's most endangered marine mammal. When international crime cartels discovered a lucrative trade in the swim bladders of totoaba, illegal gillnetting went rampant, and now the lives of the few remaining vaquitas hang in the balance. Author Brooke Bessesen takes us on a journey to Mexico's Upper Gulf region to uncover the story. She interviewed townspeople, fishermen, scientists, and activists, teasing apart a complex story filled with villains and heroes.

Eighteen years ago, Stanford MBA Michele Raffin pulled off the road to help an injured dove, a momentary impulse that ignited in her a fervent commitment to saving vulnerable bird species. Today, her suburban home plays host to Pandemonium Aviaries, one of the largest avian rescue sanctuaries and endangered breeding facilities in the country, with a maze of 54 individual aviaries that house over 40 species, 14 of which are listed as threatened with extinction.

Naturalist Joe Hutto’s latest adventures in wildlife observation take him to Wyoming’s Wind River Mountains. Hutto is living in a tent at 12,000 feet, where blizzards occur in July and where human wants become irrelevant—and human needs can become a matter of life and death—to study the Rocky Mountain bighorn sheep.

Beavers, those icons of industriousness, have been gnawing down trees, building dams, shaping the land, and creating critical habitat in North America for at least a million years. Once one of the continent's most ubiquitous mammals, they ranged from the Atlantic to the Pacific, and from the Rio Grande to the edge of the northern tundra. Wherever there was wood and water, there were beavers - 60 million (or more) - and wherever there were beavers, there were intricate natural communities that depended on their activities.

Emmy Award - winning filmmaker, writer, and naturalist Joe Hutto has done it again. Touching the Wild is the enchanting story about one man who has lived with a herd of mule deer in the Wind River mountains of Wyoming for almost seven years. Why, you may ask, would a person choose to do such a thing? His response: how could you not? For Joe Hutto, close proximity to wild things is irresistible. In Illumination in the Flatwoods he unveiled the secret lives of the wild turkey to great critical acclaim.