Movie 1.

A male fish lunges at its own reflection in the tank wall, producing sound pulses and extending the lower jaw.

Acoustic and postural displays in a miniature and transparent teleost fish, Danionella dracula

Rose L. Tatarsky, Zilin Guo, Sarah C. Campbell, Helena Kim, Wenxuan Fang, Jonathan T. Perelmuter, Eric R. Schuppe, Kevin W. Conway, Hudson K. Reeve, and Andrew H. Bass

Journal of Experimental Biology 2022. 225:None-None; doi: 10.1242/jeb.244585