This book shares the survival stories of endangered species that have made a comeback. Learn about the human and natural factors that drove each species to the edge of extinction, and find out what helped them survive and thrive.

Discusses how twelve marine animals from around the world came to be endangered and the efforts that helped them to survive and thrive.

True stories of how scientists are saving endangered species, with photos included: “Readers will be moved by Castaldo’s appreciation for these animals.” —Booklist (starred review) In this book, the acclaimed author of Sniffer Dogs details the successful efforts of scientists to bring threatened animals back from the brink of extinction. How could capturing the last wild California condors help save them? Why are some states planning to cull populations of the gray wolf, despite this species only recently making it off the endangered list? How did a decision made during the Civil War to use alligator skin for cheap boots nearly drive the animal to extinction? Back from the Brink answers these questions and more as it delves into the threats to seven species, and the scientific and political efforts to coax them back from the brink. This rich, informational look at the problem of extinction offers a source of hope—all of these animals’ numbers are now on the rise—and will inspire young wildlife lovers and aspiring scientists. Winner of the Crystal Kite Award and a Sigurd F. Olsen Best Nature book Honorable Mention

Elephant seals have such a fascinating migration story. Unlike migrations of many other animals, male and female elephant seals actually take different migratory routes. They arrive in different parts of the world, eat different food sources, swim different lengths, and spend time in two different temperatures of water, among other things. This fun and informative volume tells the tale of the epic elephant seal journey with accessible, exciting language accompanied by fantastic full-color photographs. A map of both journeys provides opportunity for visual comprehension of the lengths these animals go to every year.

"Intrepid conservation detective story." --Nature "A lucid, informed, and gripping account...a must-read." --Science "Passionate...a heartfelt and alarming tale." --Publishers Weekly "Gripping...a well-told and moving tale of environmentalism and conservation." --Kirkus "Compelling." --Library Journal 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. Vaquita have been in decline for decades, dying in illegal gillnets intended for a giant fish, totoaba. Author Brooke Bessesen takes us to the Upper Gulf region in search of answers to a heart-wrenching dilemma. When diplomatic efforts to save the porpoise failed, Bessesen followed a scientific team in a binational effort to capture remaining vaquita and breed them in captivity--the only hope for their survival. In this fast-paced, soul-searing tale, she learned that there are no easy answers when extinction is profitable.

Sea otters once ruled the Pacific Ocean, but the fur trade of the eighteenth and nineteenth centuries brought this predator to near extinction. Today they’re slowly coming back from the brink, and scientists are learning more about their pivotal role as one of nature’s keystone species. This book looks at the history, biology, behavior and uncertain future of sea otters. Author and photojournalist Isabelle Groc takes us into the field: watching sea otter rafts off the British Columbia coast from a kayak, exploring what makes their fur coats so special, understanding how their voracious appetites are helping kelp forests thrive and, ultimately, learning how sea otters are leaving their mark (or paws) on every part of the ecosystem. They might be one of the most adorable creatures in the ocean, but kids will discover how their survival is key to a rich, complex and connected ecosystem.

"Captivating. . . . a full portrait of this adorable and ecologically important animal." —Publishers Weekly A science journalist travels the Pacific Coast in search of sea otters in this entertaining and inspiring book on the importance and history of this charismatic endangered species Sea otters—the adorable, furry marine mammals often seen floating on their backs holding hands—reveal the health of the coastal ecosystem along the Pacific Ocean. Once hunted for their prized fur in the 18th and 19th centuries, these animals nearly went extinct. Only now, nearly a century after hunting ceased, are populations showing stable growth in some places. Sea otters are a keystone species in coastal areas, feeding on sea urchins, clams, crab, and other crustaceans. When they are present, kelp beds are thick and healthy, providing homes for an array of sea life. When otters disappear, sea urchins take over, and the kelp disappears along with all the creatures that live in the beds. Now, thanks to their protected status, sea otters are making a comeback in California, Washington, and Alaska. In this hopeful book, science writer Todd McLeish embarks on an epic journey along the Pacific Coast—traveling from California to Alaska—to track the status, health, habits, personality, and viability of sea otters, and reveals how conservationists brought them back from the brink of extinction.