Tadpole Plasticity Triggered by Dragonfly Nymph Predation (video)

Professor Rick Relyea from the University of Pittsburgh gave a fascinating seminar today: "Phenotypic Plasticity: Stress-Induced Changes in Behavior, Morphology, and Life History of Aquatic Organisms".
He showed this amazing and somewhat scary video of dragonfly nymphs and tadpoles.

Rick's lab website. Movie is downloaded from here.