extinction (biology)

Describes the delicate ecological balance among all living things on land, the damage done by humanity in contributing to the extinction of various species, and ways of preventing further harm.

Explains how the extinction of various animal species can upset the delicate balance of the ecosystem and offers a variety of protective measures that would help avoid further damage.

Discusses the global catastrophe that may have led to the end of Cretaceous life forms 65 million years ago.

Describes giant bugs, birds, and mammals that lived long ago and became extinct during the last Ice Age, discusses the extinction of more recent animals, and examines efforts to protect endangered species.

Explores the importance of the world's oceans to life on Earth through discussions of ocean currents, the building of coral structures, acidification, the dead zone in the Gulf of Mexico, and the spawning of corals in Panama, and makes a plea for conservation.

Examines the history of the environmental movement in America from colonial times through the present, describing how Americans first realized that they could be responsible for the destruction of entire species of plants and animals and what steps have been taken to alleviate the problem.

Examines the mass extinction of dinosaurs and offers a possible explanation of the causes in text with accompanying photographs.

In the future, a virus has rendered humans barren; no new births have happened in fifteen years and human cloning remains illegal because only grotesque failures have resulted from it. When three friends, teenagers Xian, Jesse, and Mia, stumble across mystery of a girl who has been missing for sixty years, they may have found a way to save the human race.

Presents illustrated information on discoveries about early humans, covering such topics as Lucy, Peking man, "Homo habilis," "Homo erectus," Neanderthals, Cro-Magnons, prehistoric art, early hunters, early tools, and the Piltdown hoax.

Presents illustrated details on birds, insects, fish, reptiles, amphibians, and mammals that once lived in North America, Australia, India, southern Africa, the British Isles, northern Europe, and other regions throughout the world, and describes each region's lands, plants, and climate in prehistoric times.