Emma Bernard, a curator of fossil fish at the Museum, says, 'Shark-like scales from the Late Ordovician have been found, but no teeth. If these were from sharks it would suggest that the earliest ...
Small organisms such as plankton get stuck in their gill rakers and the shark then consumes the food. Filter-feeding sharks include whale sharks, megamouth sharks and basking sharks. These species ...
While some species like lemon sharks do indeed have pointed teeth to help catch their slippery prey, other species like the whale shark are filter feeders, and have no sharp teeth at all.
“We have no before-versus-after abundance survey data for sharks in Hawaii,” he said. “Thus we are not able to detect any declines or increases in shark abundance. We only have surveys ...