In search for the “missing links” of queer posthumanist discourses, some nonhuman animals play a crucial role in setting up new possible ontologies of sexual diversity. However, the desire to trace “natural” evidence for sexual diversity and a non-binary gender system that goes beyond the simplistic “social constructionism” vs. “biological essentialism” dichotomy in the nonhuman world should be critically examined. In this article I analyze both the scientific and popular representations of “wild and weird” nonhuman animals that became rich semiotic-material (...) referents to human sexuality and gender diversity in order to propose “transpecies intimacies” as a strategy for overcoming the deadlock present in naturalizing and essentializing discourses. This essay focuses on the case of the spotted hyena, because this nonhuman animal functions as an important signifier and material resource for sexual differences on multiple levels of power relations – institutional, scientific, educational, somatic, discursive, and even affective. I consider how biomedical narratives on sexualized nonhuman animals employ hegemonic economies of sexual difference to build stories of a naturalized sexuality and an embodied gender difference wherein some chemical substances, like hormones, and some body parts, like genitals, serve as primary actors in this semiotic-material system. (shrink)

Sex hormones today are seen as central to the production of biological sexual difference. This article examines the development of this scientific `fact', and asks how hormones came to be in this position. The article does not involve original historical research, however. Instead it uses existing histories of hormonal sexual difference to develop a theoretical argument about body histories. How can the history of scientific views of bodies be written and understood? What can these histories tell us about the relation (...) between scientific representations of bodies and the materiality of bodies? Combining and critiquing arguments from feminist histories of science, Bruno Latour's actor network theory, Michel Serres's theory of folded time, and Donna Haraway's notion of situated knowledges, this article argues for the centrality of embodiment and location to useful body histories. (shrink)

Since the late 1990s, a constellation of professional associations, journals and health promotion materials has emerged that has constructed the ‘aging male’ as a medical problem. Central to this construction has been a revival of a hormonal model of the male body in which anti-aging is linked to the restoration of masculinity. In this paper I revisit the association of aging and demasculinization that animated the rejuvenation movement of the early 20th century, and contrast this with the initial mainstream medical (...) interest in testosterone therapy in the mid-20th century. Then I will demonstrate how the association between anti-aging and re-masculinization has been given new life in the remedicalized ‘andropause’, and as a contemporary focus on maintaining life-long virility has emerged as an important indicator of ‘health aging’. (shrink)

In 1920, Eugen Steinach and Paul Kammerer reported experiments showing that exposure to high temperatures altered the structure of the gonad and produced hyper-sexuality in "heat rats," presumably as a result of the increased production of sex hormones. Using Steinach's evidence that the gonad is a double gland with distinct sexual and generative functions, they used their findings to explain "racial" differences in the sexuality of indigenous tropical peoples and Europeans. The authors also reported that heat induced anatomical changes in (...) the interstitial cells of the gonad were inherited by the heat rats' descendants. Kammerer used this finding to link endocrinology to his long-standing interest in the inheritance of acquired characteristics. The heat rats supported his hypothesis that the interstitial cells of the double gland were the mechanism of somatic induction in the inheritance of acquired characteristics. The Steinach-Kammerer collaboration, Kammerer's use of Steinach's "puberty gland" to explain somatic induction, and his endocrine analysis of symbiosis reveal Paul Kammerer's late career attempt to integrate endocrinology and genetics with the political ideals of Austrian socialism. With them he developed a bioethics that challenged the growing reliance on race in eugenics and instead promoted cooperation over competition in evolution. I relate his attempt to the controversies surrounding the interstitial cells, to the status of extra-nuclear theories of heredity, and to Kammerer's commitment to Austromarxist social reforms during the interwar period. (shrink)

In America by the 1930s, albino rats had become a kind of generic standard in research on physiology and behavior that de-emphasized diversity across species. However, prior to about 1915, the early work of many of the pioneer rat researchers in America and in central Europe reflected a strong interest in species differences and a deep regard for diversity. These scientists sought broad, often medical, generality, but their quest for generality using a standard animal did not entail a de-emphasis of (...) organic diversity. They chose white rats as test animals for two primary reasons. First, rats develop very slowly. They therefore made features of physiological, neural and psychological development accessible to the experimental method at a time when its application to the phenomena of development remained controversial. Secondly, rats were thought to have unusually strong sex drives. For this reason they became central to the experimental study of sexuality and, in the work of the reproductive physiologist Eugen Steinach, sexual development. Connections among three research institutes that stressed experimental approaches to the study of brain and development demonstrate the importance of the rat's institutional role. As the emphasis on experimentation in the study of development grew, two of these institutes bred rats to provide uniform materials. Eventually, however, their reasons for selecting rats were lost; and the ready availability of a uniform test animal led to a shift in scientists' presumptions about diversity, as the standard rat became a tool for assuring generality. (shrink)

This paper provides a brief comparative overview of the development of the reproductive sciences especially in agriculture in the UK and the US. It begins with the establishment by F. H. A. Marshall in 1910 of the boundaries that framed the reproductive sciences as distinct from genetics and embryology. It then examines how and where the reproductive sciences were taken up in agricultural research settings, focusing on the differential development of US and UK institutions. The reproductive sciences were also pursued (...) in medical and biological settings, and I discuss how the intersections among all three allowed the circulation of both ideas and scientists’ careers. Across the twentieth century, scientific leadership in the reproductive sciences alternated between the UK and US, and these patterns are elucidated. I conclude with thoughts on future research that might emphasize the elaboration of industrialization processes in agriculture and new capacities to transform both reproductive processes and their products—life itself—as biopower comes to be more ambitiously understood as extending across all species. (shrink)

Displacing the physiological model that had held sway in 19th-century medical thinking, early 20th-century hormone research promoted an understanding of the body and sexual desires in which variations in sex characteristics and non-reproductive sexual behaviours such as homosexuality were attributed to anomalies in the internal secretions produced by the testes or the ovaries. Biotypology, a new brand of medical science conceived and led by the Italian endocrinologist Nicola Pende, employed hormone research to study human types and hormone treatments to normalise (...) individuals who did not conform to accepted medical norms. Latin American medical doctors, eugenicists, and sexologists took up biotypology with enthusiasm. This article considers the case studies of Italy, Argentina, and Brazil, and analyses the work of medical doctors who adopted a biotypological mode of reasoning and employed to various extents hormone therapies in their practice. By focusing on hormone therapies that aimed to normalise secondary sexual characteristics and the sexual instinct, the article suggests that while the existence of normality was contested to the point that a number of medical scientists argued that no such thing existed, the pursuit of normality was carried out in very practical terms through the new medical technologies hormone research had introduced. (shrink)

Contemporary hormonal therapy for the menopause has its conceptual origins in the ancient tradition of organotherapy. The popular but pharmacologically inactive precursors of hormonal therapy were developed as part of a resurgence of interest in organotherapy in the 19th century, which coincided with increasing medicalization of the menopause and the view that the ovaries were responsible for the ‘feminine’ identity and wellbeing of women. The subsequent chemical identification of oestrogens allowed the development of pharmacologically active hormonal therapy for the menopause, (...) which was probably first used clinically in the late 1920s. Around this time, emphasis shifted from the ovaries to oestrogen as being responsible for femininity and health, with the menopause and ageing increasingly defined as oestrogen deficiency diseases. Hormonal therapy for the menopause was first used predominantly for women who had a premature menopause. In the 1960s, universal prescription was increasingly promoted as a way of preventing diseases of later life and the perceived ‘defeminization’ of women by menopause. Scientific evidence regarding the risks and benefits of hormonal therapy for the menopause has been accruing over the last 70 years; its interpretation has been affected by background beliefs regarding the effects of oestrogen and the menopause on women. (shrink)