The animal noted for its intelligence and problem-solving capabilities is the octopus. Known for their remarkable cognitive abilities, octopuses are capable of exhibiting complex behaviors such as navigating mazes, escaping enclosures, and using tools. They possess a decentralized nervous system, with a significant portion of their neurons located in their arms, allowing for intricate and coordinated movements. Studies have shown that octopuses can learn from experience, showcasing a level of intelligence that surpasses many other invertebrates. Their unique adaptations and behaviors have sparked interest in research, providing insights into the evolution of intelligence in non-verbal species.