<P> In 2007, the bonnethead shark was found to be capable of asexual reproduction via automictic parthenogenesis, in which a female's ovum fuses with a polar body to form a zygote without the need for a male . This was the first shark known to do this . </P> <P> Hammerhead sharks are known to eat a large range of prey including fish, squid, octopus, crustaceans, and other sharks . Stingrays are a particular favorite . These sharks are often found swimming along the bottom of the ocean, stalking their prey . Their unique heads are used as a weapon when hunting down prey . The hammerhead shark uses its head to pin down stingrays and eats the ray when the ray is weak and in shock . The great hammerhead, tending to be larger and more aggressive than most hammerheads, occasionally engages in cannibalism, eating other hammerhead sharks, including its own young . </P> <Table> <Tr> <Th> Species </Th> <Th> Common names </Th> <Th> IUCN status </Th> </Tr> <Tr> <Td> Eusphyra blochii </Td> <Td> Winghead shark </Td> <Td> Near threatened </Td> </Tr> <Tr> <Td> Sphyrna corona </Td> <Td> Scalloped bonnethead </Td> <Td> Near threatened </Td> </Tr> <Tr> <Td> Sphyrna couardi </Td> <Td> Whitefin hammerhead </Td> <Td> Yet to be assessed </Td> </Tr> <Tr> <Td> Sphyrna gilberti </Td> <Td> Carolina hammerhead </Td> <Td> Yet to be assessed </Td> </Tr> <Tr> <Td> Sphyrna lewini </Td> <Td> Scalloped hammerhead </Td> <Td> Endangered </Td> </Tr> <Tr> <Td> Sphyrna media </Td> <Td> Scoophead </Td> <Td> Data deficient </Td> </Tr> <Tr> <Td> Sphyrna mokarran </Td> <Td> Great hammerhead </Td> <Td> Endangered </Td> </Tr> <Tr> <Td> Sphyrna tiburo </Td> <Td> Bonnethead </Td> <Td> Least concern </Td> </Tr> <Tr> <Td> Sphyrna tudes </Td> <Td> Smalleye hammerhead </Td> <Td> Vulnerable </Td> </Tr> <Tr> <Td> Sphyrna zygaena </Td> <Td> Smooth hammerhead </Td> <Td> Vulnerable </Td> </Tr> </Table> <Tr> <Th> Species </Th> <Th> Common names </Th> <Th> IUCN status </Th> </Tr>

What are the different types of hammerhead sharks
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