Movie 1

Measuring the vestibulo-ocular reflex (VOR). The clip shows a frontal view of an Agalychnis callidryas hatchling within the tadpole rotator, as it is rotated through a series of 15° rotational increments. This individual shows eye rotation opposite to body rotation, demonstrating a VOR. The video was recorded using an MPE-65 mm macro lens.

How do red-eyed treefrog embryos sense motion in predator attacks? Assessing the role of vestibular mechanoreception

Julie Jung, Su J. Kim, Sonia M. Pérez Arias, James G. McDaniel, and Karen M. Warkentin

Journal of Experimental Biology 2019. 222:None-None; doi: 10.1242/jeb.206052