image: Sonograms and waveforms of the túngara frog call complexity series show a simple whine, a whine with one chuck, a whine with two chucks, and a whine with three chucks. This image relates to an article that appeared in the Aug. 5, 2011, issue of Science, published by AAAS. The study, by Dr. Karin L. Akre of the University of Texas, Austin, and colleagues was titled, "Signal Perception in Frogs and Bats and the Evolution of Mating Signals." view more
Credit: Image © Science/AAAS