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 (miniseries) creature. The creature quickly gains the upper hand and almost kills Chase. Max uses Peniston's sound device to distract the creature. It attacks him, but he uses a zipline to escape. Peniston takes the sound device and lures the creature into the pressure chamber. Dr. Chase urges Peniston not to stay in the pressure chamber with the creature, but Peniston refuses to leave saying he can't let the creature die alone. Dr. Chase locks them in and activates it, building greater and greater pressure. The creature kills Peniston. Chase allows the pressure to build up very high then smashes the