Well, if you've still got it, you gotta shake it, shake it, shake it, shake it, baby:
Pretty amazing that a common behavior in a species so well known had never been properly described or understood! Until someone thought to turn those darn lights off and let the frogs do their little dance in the dark. Check out the paper that goes with this video from Science Friday. Cool work!
Caldwell, M., Johnston, G., McDaniel, J., & Warkentin, K. (2010). Vibrational Signaling in the Agonistic Interactions of Red-Eyed Treefrogs Current Biology DOI: 10.1016/j.cub.2010.03.069
Robertson, J., & Zamudio, K. (2009). Genetic Diversification, Vicariance, and Selection in a Polytypic Frog Journal of Heredity, 100 (6), 715-731 DOI: 10.1093/jhered/esp041