Galapagos shark
The Galapagos shark is known to be a solitary species, but it is sometimes found in loose groups. It is a curious species, and is known to approach swimmers and investigate other disturbances in the water, such as boats and divers. The Galapagos shark can be an aggressive animal, and, like other species of sharks, it performs a display in order to attack its target. This display involves arching its back, raising its head, and lowering its pectoral fins as it swims with a noticeable twisting motion.