Movie 3
A late stage metamorph performing double bubble-sucking. Even at this late developmental stage, metamorphic Hyla versicolor tadpoles continue to perform double bubble-sucking.
The mechanics of air breathing in gray tree frog tadpoles, Hyla versicolor (Anura: Hylidae)
Journal of Experimental Biology 2020. 223:None-None; doi: 10.1242/jeb.219311