>>Male flies repeatedly rejected by females are more likely to get drunk. Those with happy fly sex lives don’t show much interest in alcohol. Male flies find ejaculation itself rewarding...with or without a female present. In rats...the brains of first-timer males light up with intense biochemical signs of reward just from rodent intercourse, regardless of whether ejaculation occurs. In female rats, copulation needs the right circumstances to evoke reward chemistry.<<
Scientists must study fruit flies and rats to know this? Says more about the sex lives of scientists than of fruit flies and rats.
“In female rats, copulation needs the right circumstances to evoke reward chemistry.”
I wonder if that would work as a pick-up line....”hey, how about a little reward chemistry”?