throat, pharynx(noun) the passage to the stomach and lungs; in the front part of the neck below the chin and above the collarbone. throat(noun) an opening in the vamp of a shoe at the instep. throat(noun) a passage resembling a throat in shape or function.
One of the best examples is the difference between a dolphinfish and a dolphin. Dolphins are mammals and breathe air with lungs just like humans. There are many different dolphins species, including endangered river species, but all of them are in the same animal family (Delphinidae).
Bottlenose dolphins have been the mainstays of oceanariums and TV programs for decades. The largest dolphin species is the Orca, or 'killer whale' (Orcinus orca). Male killer whales can grow up to 9.6 m (31.5 ft) . Here is a listing of the dolphin species: