Do octopus brains work like humans’ — or is there another way to be smart?

Octopuses, squid, and cuttlefish, part of the cephalopod family, have unique features like three hearts, blue blood, and the ability to change skin color and texture. These creatures evolved separately from vertebrates over 600 million years, yet they share similarities, such as complex eyes. Cephalopods have large brains, making them intelligent problem-solvers with excellent memories. This intelligence has sparked interest in cephalopod neuroscience, offering insights into brain function. However, ethical challenges arise as cephalopods lack the legal protections given to vertebrates in research. Scientists are adapting neuroscience tools to study these invertebrates, aiming to uncover new biological insights. QUESTION: How might the study of cephalopod intelligence change our understanding of animal cognition and influence future scientific research?