Jurassic Sharks

The special takes viewers deep into prehistoric waters to explore the ancient ancestors of today's sharks. Using animation, the episode highlights some of the most feared prehistoric ocean creatures, including the Dunkleosteus, the buzzsaw shark (Helicoprion), and the scissor-toothed shark (Edestus). The special takes viewers deep into prehistoric waters to explore the ancient ancestors of today's sharks. Using animation, the episode highlights some of the most feared prehistoric ocean creatures, including the Dunkleosteus, the buzzsaw shark (Helicoprion), and the scissor-toothed shark (Edestus).