Sharks might not be a natural biological group, with most species potentially closer kin to rays than to an oddball group of sharks.

Add Yahoo as a preferred source to see more of our stories on Google. Research started more than two decades ago by Demian Chapman, now the director of Mote Marine Laboratory’s Center for Shark ...

If you liked this story, share it with other people. A new-to-science hammerhead species, the shovelhead shark, has been hiding in plain sight for three centuries due to its close resemblance to a ...