The Gaia hypothesis, which promulgates the idea that the Earth as a whole is alive, is discussed. The microworld and the idea that symbiosis is a major force behind evolution are emphasized. (KR)

Summarizes events of a conference on evolutionary biology in Chicago entitled: "Macroevolution." Reviews the theory of modern synthesis, a term used to explain Darwinism in terms of population biology and genetics. Issues presented at the conference are discussed in detail. (CS)

Examines two views about acceptance of Darwin's theory by scientists in Great Britain; that all scientists had accepted it within ten years after the publication of "Origin of Species," and that young scientists accepted the theory faster than old scientists. Concludes that both views are not accurate. (GA)

This article reviews some recent technical progress in the social sciences and three frontier areas including evolutionary theory as related to sociobiology, the theory of human rational choice, and cognitive science. These areas offer explanations for broad areas of human behavior. (Author/SA)

This study discusses the behavior of the females of the parasitic wasp Nasonia vitripennis, which adjust the sex ratio of their broods according to whether or not they are the first or second wasp to parasitize a host. The results provide a quantitative test of sex ratio theory. (Author/SA)