Some thousands of years ago, the world was home to an immense variety of large
mammals. From wooly mammoths and saber-toothed tigers to giant ground sloths and …

At this very moment, many of Earth's living kinds are slipping away; sometimes quietly,
sometimes in bright bursts of controversy, chaos, and pain. As a growing cohort of biologists …

Some 250 million years ago, the earth suffered the greatest biological crisis in its history.
Around 95 percent of all living species died out—a global catastrophe far greater than the …

This is the first major book to present a comprehensive overview of the current state of
extinction studies. At the end of the journey, Raup has put forward the best science of the …

Environmental scientists reveal the victims of humanity's massive assault on nature. Gerardo
Ceballos, Anne H. Ehrlich, and Paul R. Ehrlich serve as witnesses in this trial of human …

Today the number of species is the largest in the history of life; however a considerable
proportion of that biodiversity is endangered and many species have suffered anthropogenic …

To those struggling on the frontlines to save endangered plants and animals, the crucial
challenge is to confront the biological causes of those species' decline. But just as …

Extinction is a natural process that has been integral to evolutionary change throughout the
history of life. The constant, ongoing loss of the various components of biodiversity—whether …

This paper re-evaluates whether we are really at the start of a mass extinction caused by
humans. I consider the present, past and future of human-caused extinctions. As regards the …

Some contrarian critics argue that doom-laden prophecies ofmass extinctions are based on
assumptions that have modest scientific support and are wide open to question has become …