
Scientists have found that after squid lose a tentacle they seem to act more skittish around sea bass. Although the squid have a higher risk of being attacked, their injuries makes them more sensitive to their predator, giving them a higher chance to survive. Some findings also explain behaviors such as anxiety linger after a threat has passed.
https://www.sciencenews.org/blog/science-ticker/pain-may-keep-predators-away-squid-anyway
https://www.sciencenews.org/blog/science-ticker/pain-may-keep-predators-away-squid-anyway