Sperm Whale

Marine Pollution Bulletin 60 — International Journal of Comparative Psychology. What is a Whale? The combination of having less whales to communicate and the increased difficulty in finding a mating partner can create stress that reduces an endangered whales life expectancy. Mothers also use it it keep track of their young calf when they are diving to hunt; a calf cannot dive very deeply because it has to breathe much more frequently than the mother does.