A trend toward increasing female lifespan advantage ended about 1975 when women’s participation in the workforce began to increase relatively sharply.

Some scholars with urgent seriousness have recently put forward the claim that men are from Mars and women are from Venus.  Fossil remains of anatomically modern humans have been found on earth from 200,000 years ago.   A recent fossilized foot bone indicates that a human-like animal was a terrestrial biped about three million years ago.  [...]

In a preclassical Mayan creation mural from San Bartolo and dated to roughly 100 BGC, male gods draw blood from their penises as part of acts to establish the cosmos.  Wounding one’s own reproductive organ is odd behavior from an evolutionary perspective. The wounding effect is naturally related to the female reproductive cycle.  Perhaps male [...]

Sex is not socially constructed through human discourse.  Almost all the plant and animals that you see reproduce sexually.  Humans have reproduced sexually from the time of the very first humans.  Fossils indicate that life forms have reproduced sexually for at least 1.2 billion years.[*] Sex is a key variable in Darwinian evolution.  Biological and [...]