A new fossil of one of the most unusual dinosaurs, Spinosaurus aegyptiacus, suggests it was a swimming predator powered by a fin-like tail. The find comes after decades of debate on how much of its life Spinosaurus would have spent in the water, and how reliant they might have been on aquatic prey. Paleontologist Nizar Ibrahim has been working at the dig site in the Sahara and describes his amazement at the unique tail bones they found under the rock and sand.
April 8, 2021 — Meghan McDonough
February 22, 2021 — Lee Billings
February 11, 2021 — Sara Reardon and Dominic Smith
January 29, 2021 — Erik Olsen
January 12, 2021 — Dominic Smith and Andrew Robinson
December 9, 2020 — Meghan McDonough