Here are all the hammerhead shark facts you need to know. Experts have identified at least eight living shark species in the ...

So seeing a hammerhead shark (Sphyrna tiburo) embryo, halfway through its five-month development, is very unusual. Access to growing embryos is key for developmental biologists like me as we try ...

WASHINGTON— The Center for Biological Diversity submitted a petition today urging the National Marine Fisheries Service to protect the great hammerhead shark under the Endangered Species Act. Today’s ...