Here is an answer to a question that we get asked a lot, and a really unique video from our BRUVs (Baited Remote Underwater Video System) research to answer it. Do all sharks need to swim constantly to survive? Here we have a smooth dogfish shark that has decided to position itself in the current, presumably to facilitate water flow into an open mouth. But, is that enough? Look closely at the sharks gills for the answer and feel free to guess what is going on here! Either way, this shark stopped