Fish species are a diverse group of aquatic animals that can be found in both fresh and saltwater habitats. Two common fish species are the GAR (3 letters) and the SHAD (4 letters). The GAR is a long, slender fish with a pointed snout and diamond-shaped scales. It is found in freshwater lakes and rivers throughout North America. The SHAD is a silvery fish with a forked tail and a deep body. It is found in coastal waters and rivers along the Atlantic coast of North America.