"It's obviously still inside the rock, so we have a few more years of digging ahead of us." Paleontologists in Argentina have discovered the fossilized remains of a 98 million-year-old titanosaur that they say may be from the largest animal ever to walk the earth. A team of researchers with Naturales y Museo, Universidad de Zaragoza, and Universidad Nacional del Comahue actually found the remains in 2012, but excavation work only began in 2015, according to paleontologist Jose Luis Carballido of the Museo Egidio Feruglio. In a new report published in the journal Cretaceous Research, the group lays out what...