Octopuses Not Only Feel Pain Physically, But Emotionally Too, First Study Finds. An important new study suggests octopuses are likely to feel and respond to pain in a similar way to mammals - the first strong evidence for this capacity in any invertebrate.

Does octopus hurt?

Although you might only know about blue ringed octopus genus (Hapalochlaena) being venomous, all octopus actually have venom, even though most are not lethal to humans. There aren't many accounts of humans being hurt by octopuses – they tend to avoid humans, and many attacks haven't been verified.

Do Squid feel pain?

Squids, though, may feel pain very differently. Shortly after a squid's fin is crushed, nociceptors become active not only in the region of the wound but across a large part of its body, extending as far as the opposite fin.