ovulation
Why Female Orgasm Evolved
Why Female Orgasm Evolved
Jef Akst | Aug 4, 2016
The phenomenon may have arisen to trigger hormonal surges and drive ovulation, scientists propose.
Taking a Dino’s Temperature
Taking a Dino’s Temperature
Bob Grant | Oct 15, 2015
Researchers develop a method for estimating the body temperatures of long-extinct species, and suggest that dinosaurs operated somewhere between endothermy and exothermy.
Behavior Brief
Behavior Brief
Jenny Rood | May 21, 2015
A round-up of recent discoveries in behavior research
Book Excerpt from <em>How We Do It: The Evolution and Future of Human Reproduction</em>
Book Excerpt from How We Do It: The Evolution and Future of Human Reproduction
Robert Martin | Jul 1, 2013
In Chapter 3, “From Mating to Conception,” author Robert Martin explores the question of why humans and other primates frequently engage in sexual intercourse when females are not fertile.
Widening the Fertile Window
Widening the Fertile Window
Robert Martin | Jul 1, 2013
Women may be able to store viable sperm for longer than a week, thus contributing to apparent variability in pregnancy lengths.