Surveys some of the surprising relationships formed by animals in need of shelter, food, or protection, covering such examples as ostriches, zebras, and crocodiles.
Discusses the formation, types, and locations of volcanoes and describes the eruptions of Par?cutin, Vesuvius, Krakatoa, Mont Pel?e, and Mount St. Helens.
Examines the fundamental differences between written and spoken English and American Sign Language, the first language for more than 250,000 deaf people in North America. Includes instructions for using sign language in playing games, reading poetry, and singing songs.