Movie 1

Ciliary beat differs during gliding, pausing and resumption of gliding after a pause. Transmitted light images with differential interference (DIC) optics at 16 ms per frame show: (1) Asynchronously beating cilia on a gliding animal; (2) Arrested cilia during a pause; (3) Increasing numbers of beating cilia during resumption of movement after a pause.

Neuropeptidergic integration of behavior in Trichoplax adhaerens, an animal without synapses

Adriano Senatore, Thomas S. Reese, and Carolyn L. Smith

Journal of Experimental Biology 2017. 220:3381-3390; doi: 10.1242/jeb.162396