Hehner, Barbara

An account of the first moon landing by Apollo 11 in 1969.

An account of the first moon landing by Apollo 11 in 1969.

Explores, in text and photographs, the various ecosystems of the Earth and how humans are affecting the delicate balance of the natural world.

Provides information about the smilodon, a sabertooth cat that lived in North America during the Ice Age, looking at what has been learned about the animals through investigation of remains found at the Rancho La Brea asphalt pits in California.

Describes how and where cave bears lived, possible reasons for their extinction, and what kind of relationship might have existed between these huge creatures and prehistoric man.

Provides information about the wooly mammoth, an animal that lived on Earth over 20,000 years ago, discusses the possible reasons for the extinction of the mammoth, and includes information about scientific studies of the frozen carcass of a mammoth found in Siberia, and the possibility that the animal could be cloned.