Spinosaurus, the only known semiaquatic dinosaur predator, joins Tyrannosaurus, Giganotosaurus and Carcharodontosaurus among the largest meat-eating dinosaurs.

Scientists in Niger have identified Spinosaurus mirabilis, a 40-foot predator that lived in freshwater habitats 95 million years ago.

From coastal drives to national parks, these routes are perfect for a spring vacation.