Dolphins are the most intelligent animals on Earth, second only to humans.
While dolphins are indeed intelligent with good social skills and problem-solving abilities, 'smartest' depends on how you measure intelligence. Great apes, elephants, corvids, octopuses, and other species show remarkable cognition in different ways. Intelligence is multifaceted, and different animals excel at different cognitive tasks. Dolphins' intelligence is often overstated due to their social nature and human-like characteristics.