The Nature of Difference documents how distinctions between people have been generated in and by the life sciences. Through a wide-ranging selection of primary documents and insightful commentaries by the editors, it charts the shifting boundaries of science and race through more than two centuries of American history. The documents, primarily writings by authoritative, eminent scientists intended for their professional peers, show how various sciences of race have changed their object of study over time: from racial groups to types to populations to genomes and beyond.

Evolutionary psychology occupies an important place in the drive to understand and explain human behavior. Darwinian ideas provide powerful tools to illuminate how fundamental aspects of the way humans think, feel, and interact derive from reproductive interests and an ultimate need for survival. In this updated and expanded edition of Evolution and Human Behavior, John Cartwright considers the emergence of Homo sapiens as a species and looks at contemporary issues, such as familial relationships and conflict and cooperation, in light of key theoretical principles.

The precautionary principle—which holds that action to address threats of serious or irreversible environmental harm should be taken even in the absence of scientific certainty—has been accepted as a key feature of environmental law throughout the European Union. In the United States, however, it is still widely unknown, and much of what has been written on the topic takes a negative view.

This text provides a comprehensive introduction to current thinking on language acquisition. Following an introductory chapter that discusses the foundations of linguistic inquiry, the book covers the acquisition of specific aspects of language from birth to about age 6. Topics include the language abilities of newborns, the acquisition of phonological properties of language, the lexicon, syntax, pronoun and sentence interpretation, control structures, specific language impairments, and the relationship between language and other cognitive functions.