Dr. Kenneth Lacovara, a paleontologist at Drexel University, stands between two dorsal vertebrae (mid-back bones) of Dreadnoughtus schrani as he talks about the large sauropod. Dreadnoughtus, which means “fears nothing,” was discovered in Argentina by Lacovara. (Charles Fox/Philadelphia Inquirer/MCT) (Newscom TagID: krtphotoslive695059.jpg) [Photo via Newscom]