In the present study we examined mammary gland development in AROM+ male mice at different ages. The data showed that these mammary glands undergo ductal and alveolar development morphologically resembling that of age-matched female mammary glands and express mRNA for a milk protein (ß-casein). Interestingly, mammary gland phenotype in AROM+ mice was in part reversible. http://endo.endojournals.org/cgi/content/full/143/10/4074
I see the fruit bats can take off and fly but are no good at landing. Sort of like certain biotechs...
I don't know that the bat economics would be any different from the goats, this item says the males produce only a tenth as much as the females. (Warning: graphic image) http://www.batcon.org/batsmag/v13n1-7.html