Anuran amphibians (frogs) communicate mainly by acoustic, visual, and tactile signals. However, frogs and other amphibians can also use pheromones.[1, 2] In some cases these have been chemically characterized; in frogs, newts, and salamanders they proved to be peptides or proteins, readily dissolving in water or spreading on the water surface.[2, 3] These compounds are used by the males to attract females in water. An example is the 25 ...
