Complex sentence: The northern river shark or New Guinea river shark ("Glyphis garricki") is a species of requiem shark, in the family Carcharhinidae found in scattered tidal rivers and associated coastal waters in northern Australia and in Papua New Guinea.
Split into simpler sentences: The northern river shark or New Guinea river shark ("Glyphis garricki") is a species of requiem shark, in the family Carcharhinidae. It is found in scattered tidal rivers and associated coastal waters in northern Australia, and Papua New Guinea.