Suction cup marks on sperm whales

Also, swimming speed is poorly estimated at low pitch angles. Figure 1. Kawakami, T. In northern Spain waters, giant squid feed on fish called blue whiting, which swim near the surface. Sperm Whale Physeter macrocephalus The sperm whale , known to science as Physeter macrocephalus, is the largest of the toothed whales, which includes other members such as the dolphin and killer whale. And apparently, they have found beaks in the stomachs of dead whales that point to even bigger specimens than this.