Focuses upon self-preservation, as it pervades the general patterns of behavior of all organisms, over the totality of biological evolution. Asserts that self-preservation has definable limitations that can be modeled mathematically. Suggests natural selection does not invariably favor tendencies toward self-preservation. Argues that reproduction…

The evolutionary paths by which the characteristic properties of sex chromosomes may have evolved are reviewed. The evolution of the X and Y chromosomes from a cosexual ancestor is discussed. (CW)

Attempts to emphasize some of the rather precise analytic and predictive values of evolutionary theory, applied to parental behavior. (Author/RK)

Discusses the work of evolutionary biologists in determining how sexual reproduction arose. Topics explored include the nature of sex, bacterial sex, meiotic sex, and asexual reproduction. A diagram (which can be used as a duplicating master) illustrating types of bacterial sex is included. (DH)

The meaning and history of the term symbiosis is discussed. The role of symbiosis in evolution is suggested. Research in the field of endocytobiology on symbiotic relationships is proposed. (CW)

Reviews current research on a woman's chances of bearing twins and the genetic relationship, prenatal competition, and personality similarities between twins. In addition, the nature/nurture controversy is discussed in terms of evidence from studies of identical twins reared apart. Future studies are suggested to discover the ways twinning might…

Nuffield Secondary Science is a set of tested materials from which teachers can prepare courses for students in grades 9-11 (approximately) who do not intend to major in science. The materials are designed for British secondary schools but are adaptable to other countries. The Teachers' Guide to the entire set of Themes is described in SE 015 440…

Theories of animal and human society based on sex and reproduction have been powerful in legitimating beliefs in the natural necessity of aggression, competition, and hierarchy. Feminists attempting to answer this bias are caught in a political-scientific struggle to formulate and articulate adequate biosocial theories. (Author/KR)

Presents an evolutionary-biological perspective on the course of human life. Discusses early development during the first few months of a child's life in the context of bonding with regard to the differentiation of diverse strategies of reproduction. Tries to integrate developmental-psychological knowledge and sociobiological assumptions. (DSK)

Responds to Maccoby's and Hinde's commentaries on the Belsky, et al. article in this issue. Highlights several points of concurrence and disagreement. Draws attention to the potential benefits of asking questions about proximal and ultimate causation simultaneously and, thus, the need for child developmentalists to think about both the how and why…

Describes a simulation exercise involving an imaginary organism in which students study the effect of predation on allele frequencies, examine the assumptions of the Hardy-Weinberg law, and consider whether the need to survive is a guiding force in evolution. Includes instruction for conducting the exercise. (MDH)

Argues that life cycles and the concept of the four-dimensional organism should be the most important idea in teaching high school biology in the United Kingdom. Presents a set of concepts and terms with a view to improving the perceived confusion in present teaching situations. (TW)

Presents 196 annotated listings of works on science, technology, and gender, under 9 headings: Biography and History; Women Scientists; Science Education; Feminists Look at Science and Technology; Effects of Technology on Women; Medicine and Reproductive Technologies in Women's Lives; Women and Evolution; Women and Agriculture; and Gender,…

This syllabus has been developed as an alternative to Regents biology and is intended for the average student who could benefit from an introductory biology course. It is divided into seven major units dealing with, respectively: (1) similarities among living things; (2) human biology (focusing on nutrition, transport, respiration, excretion, and…

Compares different views of the role of sexual reproduction concerning the survival and evolution of species. Discusses the benefits and disadvantages of thelytoky, one nontraditional method of reproduction. (CW)