14 Surprising Things Scientists Are Learning About Octopus Intelligence

3. Problem-Solving Prowess: Masters of Puzzle Navigation

Octopuses demonstrate problem-solving abilities that consistently surprise researchers with their complexity and creativity. In controlled laboratory environments, these cephalopods have successfully navigated three-dimensional mazes, solved multi-step puzzles, and even figured out how to open sequential locks to reach food rewards. What makes their problem-solving particularly remarkable is their ability to approach challenges from multiple angles and adapt their strategies when initial attempts fail. Recent studies have shown that octopuses can solve problems that require them to understand abstract concepts such as "same" and "different," demonstrating cognitive flexibility that was previously thought to be limited to vertebrates with large brains. In one groundbreaking experiment, octopuses were presented with transparent tubes containing food that could only be accessed by pushing the food out the opposite end—a task that requires understanding of spatial relationships and cause-and-effect reasoning. Not only did the octopuses solve this puzzle, but they also developed individual strategies, with some using their arms to push while others used water jets, showing both intelligence and personality in their approach. Perhaps most impressively, octopuses have been observed solving problems they've never encountered before without any trial-and-error learning, suggesting they possess the ability to engage in what psychologists call "insight learning"—the sudden understanding of a solution without gradual improvement through practice.