Despite the fact that they remain attached, “taking root” on the seafloor, and they do not have faces or other distinct body parts, corals are in fact animals. And sometimes we are lucky enough to witness behaviors to illustrate this fact. At a depth of 1,505 meters (4,938 feet), during Dive 04 of the Papahānaumokuākea ROV and Mapping expedition, the remotely operated vehicle pilots were able to give this bamboo coral a gentle poke…the response was the closing of the individual coral polyps – a coral wave!