@2martino3 The nervous system in principle operates the same way as in humans. However, in invertebrates, the kind of specialized nerve fibers which conduct pain in mammals have so far not been found, leading to an ongoing debate as to what to call the ability of invertebrates to perceive noxious stimuli. In other words, we know they can avoid certain things, but we don't yet know if what they 'feel' is similar enough to pain, for us to be using that word.
@brembs Thanks for the reply! I've always wondered these things and were unable to find the info online. Now I'm off to do some more work in the leech infested yard, this time they wont get any sympathy
Is this nervous tissue used in the same way it is in humans? As in, does a leech feel pain? Also, do you know if there eyes are optical or thermoreceptive? Because they seem to only have a vague sense of where my hand, full of delicious blood is..
@2martino3 The nervous system in principle operates the same way as in humans. However, in invertebrates, the kind of specialized nerve fibers which conduct pain in mammals have so far not been found, leading to an ongoing debate as to what to call the ability of invertebrates to perceive noxious stimuli. In other words, we know they can avoid certain things, but we don't yet know if what they 'feel' is similar enough to pain, for us to be using that word.
@brembs Thanks for the reply! I've always wondered these things and were unable to find the info online. Now I'm off to do some more work in the leech infested yard, this time they wont get any sympathy
Is this nervous tissue used in the same way it is in humans? As in, does a leech feel pain? Also, do you know if there eyes are optical or thermoreceptive? Because they seem to only have a vague sense of where my hand, full of delicious blood is..
@2martino3 The eyes of leeches see barely light and dark. They find your blood using thermoreceptors and chemoreceptors.
Great work THX :)