Profile: Ryan Schacht

Postdoctoral Fellow in Anthropology

I am an anthropologist at the University of Utah. I study reproductive decision-making and what the outcomes of those decisions are. I work with the Makushi of Guyana and explore the importance of socioecological variables on behavior.

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NoteStreams By Ryan Schacht

The Math of One-Night Stands & Relationships

Popular wisdom and established evolutionary science hold that the sexes seek fundamentally different relationships: men want short-term, no-strings-attached relationships whereas women value longer-term, loyal partnerships. The explanation generally comes down to biological differences between men and women. Because women invest more in reproduction than men do – think pregnancy, morning sickness and stretchmarks – being picky becomes important because choosing poorly can be costly, even devastating. However, for men, reproduction may only entail a brief sexual liaison and a bit of sperm – there are potentially no long-term costs. This calculus has been built into our psychology, many argue.

Category: Science

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