Squids and other invertebrates can probably feel pain

New research suggests that animals without backbones such as squids, crabs, and lobsters feel pain. Robyn Crook along with help from other researchers at the University of Texas have found that cephalopods possess nociceptors. These nerve cell endings transmit stimuli to the Central Nervous System. These animals also react when touched near a wound by retreating and squirting ink. One difference in the way they feel pain is that they feel pain all over and are unable to pinpoint the origin of the pain. Another researcher who has worked on this topic is Robert Elwood from Queens University in Belfast, Northern Ireland.

1 Science is Collaborative
2 Role of Credibility

http://www.popsci.com/article/science/squids-and-other-invertebrates-can-probably-feel-pain?dom=PSC&loc=recent&lnk=4&con=squids-and-other-invertebrates-can-probably-feel-pain-