For centuries, Russians believed putting a brown frog in their milk would keep it fresh. Now scientists are finding chemicals in the frog's slimy goo that inhibit the growth of bacteria and fungi. Stefan Arendt/Corbis hide caption toggle caption Stefan Arendt/Corbis Shots - Health News Scientists Look For New Drugs In Skin Of Russian Frog December 17, 2012 Secretions from a brown frog's skin contain chemicals that might be useful in fighting bacteria. Russian researchers are cataloging compounds in the slimy goo. Although the odds against them are long, the researchers hope their work will aid the search for new drugs.