To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 4 dpf zebrafish larva inspiring water from the mouth and expiring water out of the opercula. Evaluating the physiological significance of hypoxic hyperventilation in larval zebrafish (Danio rerio) Yihang K. Pan, Milica Mandic, Alex M. Zimmer, and Steve F. Perry Journal of Experimental Biology 2019. 222:None-None; doi: 10.1242/jeb.204800 Download Original Video