It's not gender, I don't think. One November, my sister worked in an office for construction work, and her (universally male) co-workers were discussing the purchase of Thanksgiving turkey. They were, to a man, going to comb the markets for the best hen turkey possible, carefully avoiding the pitfall of buying a tom turkey: no breast meat.

My sister tried (to no avail) to explain that female turkeys do not have bigger breasts than male turkeys BECAUSE THEY DO NOT SUCKLE THEIR YOUNG, BEING BIRDS. All the men thought she was CRAZY, or at least trying to have a joke at their expense!