Source: BlacknoseDace/Wikimedia Commons, CC BY-SA 4.0 It seems we are surrounded by a generation of singles. Therapy sessions, workshops, and the psychology literature are fixated on the ultimate ...
Studies of evolutionary change require an estimate of fitness, and lifetime reproductive success is widely used for this purpose. However, many species face a trade-off between the number and quality ...
Vol. 42, No. 4, Fertility, Mortality, and Family Formation during the Demographic Transition (Spring 2012), pp. 543-569 (27 pages) New evidence from the Utah Population Database (UPDP) reveals that at ...
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