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).
The Mahi-mahi, Coryphaena hippurus, also known as dolphin, dolphin-fish, dorado or lampuka (in Maltese) are surface-dwelling ray-finned fish found in off-shore tropical and subtropical waters worldwide. They are one of only two members of the Coryphaenidae family, the other being the Pompano dolphinfish.