Diplodocus is one of the longest dinosaurs ever to have lived and one of the best-known, as several skeletons have been discovered. Its long, whip-like tail was a wicked weapon Discover how fast it could move with the Speed-o-Meter, how terrifying it was on the Scary Scale, and which of today's animals it most resembles.
Diplodocus is one of the longest dinosaurs ever to have lived and one of the best-known, as several skeletons have been discovered. Its long, whip-lik...