Spinosaurus: The World's Biggest Carnivore - Nizar Ibrahim

Over 95 million years ago, there was a 50-foot long, 20-foot high, 6-ton carnivore that haunted prey both on land and in water. The spinosaurus, for all of its size, has eluded paleontologists for decades. After the first specimen was collected in the early 1900's and was subsequently bombed by the Allies in World War II, National Geographic Emerging Explorer Nizar Ibrahim finally tracked down another skeleton after scouring Morocco's deserts for years. Ibrahim's skeleton has led to a better understanding of the semi-aquatic creature, as well as a life sized model, which is now on display in the Washington D.C.'s National Geographic museum.