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
A Creature I Don't Know A Creature I Don't Know A Creature I Don't Know is the third studio album by British singer-songwriter Laura Marling, released on 9 September 2011. The album was announced in June 2011, along with a preview of a new song, featured in a video posted on Laura Marling's official YouTube channel. The first track from the album to receive radio airplay was "Sophia", on 25 July 2011 on BBC Radio 1. The "When The Bell Tolls" tour of America, Canada and England was announced on 25 July, and took place in September and October 2011 to support the album. On