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
Creature from Black Lake Creature from Black Lake Creature from Black Lake is a 1976 American horror film written and directed by Joy N. Houck Jr. and starringJack Elam, Dub Taylor, Dennis Fimple, John David Carson, and Bill Thurman. Two men exploring the Louisiana swamps encounter a Bigfoot-type creature. "Creature from Black Lake" was released for the first time on DVD by Boulevard on July 5, 2005. It was later released by Tango Entertainment on May 4, 2006. 2015 saw the film's release by VFN and Education 2000 on July 10th, and July 16th respectively. TV Guide awarded the film one out of four