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
Perfect Creature Cannes in 2005 it was announced that 20th Century Fox had purchased the North American theatrical rights, plus other key territories in what was the largest deal between a major American studio and a New Zealand film. "Perfect Creature" is the sixth most expensive New Zealand film ever made after "The Lord of the Rings" films, "The Frighteners" and "The World's Fastest Indian" respectively. The film was shot primarily around Dunedin and Oamaru in New Zealand's South Island. Perfect Creature Perfect Creature is a New Zealand made horror/thriller film from 2007, written and directed by Glenn Standring and starring Saffron