Over the course of a week in early December 2014, they witnessed the same male individual cannibalizing five different pups. In one instance, shown in the video below, he was seen dragging a pup to a shallow pool, submerging it underwater until it drowned and then proceeding to cannibalize it. Info: http://www.iflscience.com/plants-and-animals/grey-seal-filmed-while-drowning-then-cannibalizing-pup