Some cephalopod researchers have another job title: Octopus anesthesiologist.

It sounds far-fetched, but it’s an important task. Octopuses, and cephalopods in general, are the smartest invertebrates, and their complex, unique central nervous systems are studied by researchers interested in everything from motor control to visual processing to cognition itself. But that kind of research often involves invasive techniques that could cause the creatures significant pain.
Can You Feel It?
A