Unlike the grizzly is the previous posting killer whales do not get to stay in one place and enjoy the sun. The pod will form a tight group often a line if they are traveling, and their breathing and movements will synchronize. They take several breaths at the surface, and then submerge for a period of time before surfacing again. The time spent submerged increases as the “sleep” becomes deeper, and they may take up to ten breaths near the surface before submerging for as long as ten minutes. It the pod is in search of food it will spread into groups of two or three and this is when the hydrophone will pick up their calls as they communicate.