Secretions from the skin of the Russian brown frog — once used to preserve fresh milk — promise new antibiotics. (http://www.acs.org/)

http://www.acs.org/content/acs/en/pressroom/presspacs/2013/acs-presspac-february-6-2013/frog-in-bucket-of-milk-folklore-leads-to-potential-new-antibiotics.html