"Even fruit flies succumb to cultural dating pressures"

"researchers set up a series of experiments in which one “observer” female fruit fly watched a “demonstrator” fly pick between two males that differed only in their artificial color—pink or green. When it was their turn to mate, observers chose the same color of mate more than 70% of the time, compared with random chance, researchers report today in Science... 

when groups were bigger than 30 flies per generation, the team found—using computer simulations—that the inherited preference was much more likely to persist and snowball over thousands of generations."

https://www.sciencemag.org/news/2018/11/even-fruit-flies-succumb-cultural-dating-pressures?utm_source=6&utm_medium=social&utm_campaign=Science-%28ScienceMagazine%29&utm_term=SciMag&utm_content=AAAS&fbclid=IwAR1F_H3ttwkFaeMdQ49EoIO3nFZJIak6GSAt5a4vgpDS4LYAieHNmWkrRo4