""The convergent evolution of the eye still blows my mind," says Cristopher Niell, a neuroscientist at the University of Oregon in Eugene."
"Cephalopods are the only non-vertebrate animals that have big, smart brains, says Cliff Ragsdale, a comparative neuroscientist at the University of Chicago in Illinois."
"These brains bestow the soft-bodied cephalopods with high intelligence. Cuttlefish, squid and octopuses have excellent memories, use tools and are adept problem-solvers."
"It is incredibly exciting for those of us who are interested in figuring out the rules of how brains work."
Cephalopods, including octopuses, squid, and cuttlefish, exhibit remarkable features such as three hearts, blue blood, and the ability to regenerate arms. They have evolved independently for over 600 million years, sharing surprising similarities with vertebrates, particularly in eye structure. Their large brains enable high intelligence, excellent memory, tool use, and problem-solving abilities. Neuroscientists are increasingly studying cephalopods to gain insights into the functioning of complex nervous systems, as they represent the only non-vertebrate animals with advanced cognitive capabilities.
Read at Nature
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