Movie 6
The measurement of Hydra density using its free fall in water: This movie shows Hydra after its tentacles removed and made to fall in the water column. The measurement of terminal velocity allows for the estimate of density.
Differential tissue stiffness of body column facilitates locomotion of Hydra on solid substrates
Journal of Experimental Biology 2020. 223:None-None; doi: 10.1242/jeb.232702