Close Humans have the ability to experience a wide range of pains, from mourning to famine, and worst of all is - hitting your toe in the morning of a cold winter. Pain was seen to be a far easy concept for invertebrates as a way of trying to ammend something that is affecting the body via reflex. However, new research depicts a different image for the perception of pain among one of the most alluring and clever invertebrates on earth which is the fish-punching octopus. (Photo : Ann Antonova) The Three Parts Of Octopuses Pain A Journal that has undergone enhancement but yet to be a definitive version of record that is to appear in the journal iScience talks about the pain of octopuses in three major parts.