Spotted dolphins eat both fish and squid that are along the surface. They capture their food by traveling in groups to attack certain groups of fish. At the same time, they are attempting to not be eaten by sharks. Their way of escaping the sharks is by ganging up on the sharks in big groups.
Spinner Dolphin Kona, Hawaii on Body Glove ddolphin/snorkel tour.
Studying whale and dolphin anatomy and behavior could offer insights into human evolution. Killer whales have group-specific dialects, sperm whales babysit one another’s young and bottlenose dolphins cooperate with other species. These social skills are all closely linked with the aquatic mammals’ brain sizes, according to a recent study in Nature Ecology & Evolution.
After the whale shark, the basking shark is the second largest living fish, and can grow up to 32 feet long. These sharks are often mistaken for plesiosaurs, a group of long-necked, predatory marine reptiles that lived at the time of the dinosaurs