by Hazel WARD Agence France-Presse PARIS, France (AFP) — The bonnethead shark, a small member of the hammerhead family, was long thought to be a strict carnivore that would occasionally ingest greens purely by accident. Not so, scientists said Wednesday. The bonnethead follows an omnivorous diet in which seagrass plays a key, nutritional role. Although researchers have long known that Sphyrna tiburo eats copious quantities of seagrass, it was not believed to absorb any nutrients from […]