Gulf sturgeon have been around since the age of the dinosaurs, and still maintain their five rows of armor scutes, a cartilaginous skeleton, a long snout, a suction mouth, and no teeth. These anadromous fish move between freshwater rivers (Pearl River in Louisiana/Mississippi and the Suwannee River in Florida) and saltwater (Gulf of Mexico), depending on the time of year. These federally protected fish are known for their summer jumping, especially because they can grow up to 7.5 feet long and weigh up to 200 pounds.