Before feeding, Risso's dolphins plan their dives
March 1 (UPI) -- Risso's dolphins are planners. According to new research, the unique dolphin species coordinate their dives, using learned information to inform their next dive strategy.Because dolphins are mammals and breathe oxygen, they have a finite amount of time underwater tracking down something to eat. Therefore, they must be efficient. Luckily, they boast impressive cognitive abilities in addition to their speed and agility."Lab experiments that test the memory of animals for the location of food show that they have a similar ability to that of humans," Patricia Arranz, a research biologist at the University of St. Andrews in Scotland, said in a news release.Given their social nature and advanced cognition, scientists hypothesized that dolphins boost the efficiency of their forag...