This is the upper and lower jaw of the guitarfish. It is common in the American Atlantic ocean from North Carolina to Yucatan, Mexico. The guitarfish is halfway between sharks and rays in body shape. Its body is long and rounded with well developed...
The ichthyosaur is one of the best known prehistoric animals. The body of the Ichthyosaur is streamlined and torpedo shaped, with a dorsal fin on the back for stabilization and two pairs of paddles for steering, and a fishlike tail for swimming....
