Oceanic dolphin
An oceanic dolphin is a toothed whale in the family Delphinidae. The family includes bottlenose dolphins, orcas, pilot whales, and other species.
Delphinidae: The family of toothed whales that includes dolphins, orcas, and pilot whales. This family is the defining taxonomic group for oceanic dolphins.
Biosonar: Biological sonar in which an animal emits sound and interprets returning echoes. Dolphin echolocation functions as biosonar for detecting objects underwater.
Common bottlenose dolphin: A widely distributed delphinid species known for its robust body and curved mouthline. It is a familiar example of an oceanic dolphin and a subject of extensive research.
Dolphin watching: The observation of wild dolphins from boats, shore, or underwater settings. Tourism can affect delphinid behavior and creates incentives for habitat protection.
Porpoise: A small toothed whale in the family Phocoenidae, distinct from dolphins in Delphinidae. Porpoises are often mistaken for dolphins but belong to a separate family.
Cetacea: The order of aquatic mammals comprising whales, dolphins, and porpoises. Oceanic dolphins belong to this broader group of marine mammals.
Dolphin communication: The exchange of information among dolphins through sounds, movements, and physical contact. Whistles and other signals help delphinids coordinate and maintain social contact.
Orca: The largest member of the dolphin family, a social predator found in oceans worldwide. Orcas demonstrate that the dolphin family includes large, highly specialized predators.
Dolphinarium: A facility that keeps dolphins or other cetaceans for public display and performances. Captive display brings welfare and conservation debates into direct focus.
River dolphin: A common name for several toothed-whale lineages adapted to freshwater rivers. River dolphins are not members of Delphinidae despite sharing the word dolphin.