Suborder Odontoceti refers to the grouping of toothed whales, a diverse group of marine mammals that includes dolphins, porpoises, and orcas. To describe these mammals in different terms, one might use the synonyms "odontocetes", "toothed cetaceans" or "toothed whales". Additionally, some species within this suborder may be referred to by more specific names such as "bottlenose dolphins" or "killer whales". While they may vary in size, shape, and behavior, all species within this suborder share certain common characteristics such as their ability to echolocate, or use sound waves to navigate and find prey in the water.