Bonnethead fish control pitching (up-and-down motion of the body), yawing (the side-to-side motion), and rolling. Most hammerhead sharks do not yaw or roll and achieve pitch using their cephalofoils. The smaller cephalofoil of a bonnethead shark is not as successful, so they have to rely on the combination of cephalofoils and their large pectoral fins for most of their motility. Compared to other hammerheads, bonnethead sharks have larger and more developed pectoral fins and are the only species of hammerhead to actively use pectoral fins for swimming. Using data from mtDNA analysis, scientist have found that evolution of hammerhead sharks probably
Creature of Havoc Creature of Havoc Creature of Havoc is a single-player roleplaying gamebook written by British game designer Steve Jackson (not to be confused with the US game designer of the same name), illustrated by Alan Langford and originally published in 1986 by Puffin Books. It was later republished by Wizard Books in 2002. It forms part of Jackson and Ian Livingstone's fictional "Fighting Fantasy" series, and is the last "Fighting Fantasy" gamebook written by Jackson. It is the 24th in the series in the original Puffin series () and 4th in the modern Wizard series (). There are two small additions