Whether grilled, on sushin or mixed into stir fry or ceviche, there are many ways to consume octopus. But given their well-known, almost human-like intelligence, it begs the question: is it ethical to ...

SISAL, YUCATÁN, MEXICO — In a damp, darkened shoreside laboratory near the Yucatán hamlet of Sisal, Carlos Rosas Vázquez lifts one of the scores of small conch shells littering a black plastic tank.

Octopuses have nine brains, use tools, have the ability to recognize people and are so bright and brilliant it’d be cruel to farm them for human consumption. So said a stream of octopus enthusiasts, ...