How Octopuses Became the Ocean’s Smartest Invertebrates — 25 Problem-Solving Abilities

13. Individual Personalities

Octopuses are far from being “simple” invertebrates—research by Jennifer Mather has shown that each individual displays unique personalities, ranging from bold and curious to cautious or reclusive.
They have distinct preferences and consistent behavioral patterns, whether exploring their surroundings or interacting with objects. This diversity in temperament challenges traditional views and suggests a deeper, more complex intelligence at work within these fascinating animals.