"Jane Goodall once wrote about a female chimpanzee who mated with more than fifty males in a single day. This is uncom…"

"As a result of cumulative culture, we have ideas in our heads that are orders of magnitude smarter than we are."

"As far as we know, no woman in the history of the species has ever given birth and thought: “Wait a minute! How do I …"

"A well-designed parental male will tend to end up investing in his own offspring, rather than the offspring of his go…"

"This is the irritating reality of the human condition: Whatever we do, we’re left with unfulfilled desires. Human bei…"

"What accounts for psychologists’ kin-blindness – a blindness so profound it would lead to the vaporization of lazy al…"

"[W]hy would natural selection give men the physical equipment needed for violence but not the psychological machinery…"

"By clamping down on male aggression, culture may make the sex difference in aggression smaller than it would otherwis…"

"Contrary to stubborn anthropological myth, people everywhere fall in love... the idea that romantic love is an invent…"

"Humans are chimpanzees reciting Shakespeare – dunces with the technology of geniuses."