Plate showing a hammerhead shark and a longnose gar (Lepisosteus osseus).
Hammerhead sharks are species of marine fish in the family Sphyrnidae. They mostly feed on other fish, octopuses, and crustaceans.
The longnose gar is a fish in the family Lepisosteidae, most often found in freshwater. It feeds on smaller fish, insects, and crustaceans.