Kepler-452b revolves around a sun much like our own.
May 21, 2015|
A round-up of recent discoveries in behavior research
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.
July 1, 2013|
Women may be able to store viable sperm for longer than a week, thus contributing to apparent variability in pregnancy lengths.
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