Perhaps because of its size or its iconic look, the Killer Whale has been the subject of countless scientific studies, and we now know a great deal about these apex predators. They’ve been studied especially extensively since the 1970s, and we’ve learned more about their cognitive and sensory abilities, their social structures, their populations, and their behavior. For example, we know now that some populations are residents of certain coastal areas, while other populations are transient. We know they eat localized diets, but taken together, Killer Whales consume an impressive variety of prey worldwide. We’ve even discovered that Killer Whales affect whale migration, as the massive beasts often move to warmer waters to calf, where they will be free from interference by the predators.