12: Thermal Biology, Why we have Periods, and Stickers
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The Biological Purpose and Diversity of Menstruation in Different Species
Exploring the reasons behind humans and certain animals having periods, the chapter delves into the biological processes involved in menstruation, highlighting the shedding of the endometrium and hormonal changes. The discussion also covers why some species like dogs have bleeding cycles for mating purposes, contrasting them with true menstrual cycles in primates and certain mammals like bats. It questions the evolutionary origins of menstruation and considers its potential impact on fertility dynamics in various species.
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