Bonnethead tend to be larger than males. The Greek word "sphyrna" translates as "hammer", referring to the shape of this shark's head; "tiburo" is the Taino word for shark. Bonnethead sharks are the only sharks known to exhibit sexual dimorphism in the morphology of the head. Adult females have a broadly rounded head, whereas males possess a distinct bulge along the anterior margin of the cephalofoil. This bulge is formed by the elongation of the rostral cartilages of the males at the onset of sexual maturity and corresponds temporally with the elongation of the clasper cartilages. The pectoral fins on most
The Creature Walks Among Us when, in a murderous rage, he kills Jed, jealous that he had made romantic advances towards his wife. Realizing what he has done, Barton then tries to put the blame on the Gill-man. The Gill-man, witnessing the killing, and apparently realizing that he is being blamed for the murder, goes on a rampage. After ripping down the confining electric fence, he kills Barton and then slowly walks back to the sea. He is last seen on a beach, advancing towards the ocean. Unlike the previous two "Creature" films, "The Creature Walks Among Us" was not filmed in 3-D. The underwater