Scientists say that dolphins as a species are significantly smarter than chimpanzees, so smart that they should be classified as “non-human persons” — making it deeply unethical to keep them in amusement parks or inadvertently kill them in fishing operations.
Until recently, dolphins were placed third among animals in intelligence (behind humans and chimps). However, new behavioral studies suggests that dolphins are smarter than previously believed. How smart? From the U.K.’s Times:
Dolphins have distinct personalities, a strong sense of self and can think about the future.
Dolphins can solve difficult problems, and those in the wild cooperate in ways that imply complex social structures and a high level of emotional sophistication. It has also become clear that they are “cultural” animals.
Bottlenose dolphins [can] recognize themselves in a mirror and use it to inspect various parts of their bodies, an ability that had been thought limited to humans and great apes.
Read More in the Times