All organisms with a nervous system get signals from them.
What the brain does with those signals and that they mean and how they
are interpreted as pain or pleasure is not only a species thing, but is an
individual thing.
See S&M. Pain IS pleasure.
Note that until the context of a contact is assessed, there is no
difference between heat and cold stimuli even in humans.
Pain can also be blocked mentally. [hypnosis]
So yes, all animals CAN feel pain, but HOW do they feel it, is the question.
The less intelligence, the less the range of interpretation.
Then there is concentration of nerve endings that have a lot to do with
intensity and resolution of sensory perception.
On a human back, you cannot tell if you are being touched by one or two
fingers unless you know how many there are before hand. How many cuts have
you had that you don't know how they got there? Lots. Do you feel every
bug bite? No.
How many nerve endings per square inch does a fish have? Most likely,
darned few.
What is the range of interpretation in a fish? All it knows about pain
is, "Feel anything at all unusual?...move till you don't."
It only needs two definitions. Comfort and discomfort. Go and no
go. It can learn and remember for a little while, different go/no go
conditions. "Chumming" the water trains fish to go to comfort at a
sound. Full, comfort. Hungry, discomfort and a very limited range of
interpretation in between. "Plunk", means full. [food]. Full is comfort. GO!
Ode
nnAt 02:07 PM 5/31/2007 -0500, you wrote:
CWFugitt wrote:
In addition, animals do not experience pain like humans do.
They do not think, they have no logic, no reasoning, no analytical
ability, do not worry or arrive at decisions.
You can whip a dog, beat him until you feel bad about it.
What does he do? Instead of running, he comes crawling to you on his belly.
At least he better, for if he runs, I kill him. A dog can make lots of
mistakes, but if he runs from me and continues to do so, his days are
numbered.
Reading those words made me feel nauseous. I can only pray, that no dog
or animal of any kind, has the misfortune of coming to you for help or a
home.
> Can you offer a single example of this "Excessive Suffering" theory?
Would you say it's safe to assume that fish (not including Porposes or
Whales) are lower on the intelligence scale than dogs, Wayne? I would
think so.
From
<http://news.bbc.co.uk/2/hi/science/nature/2983045.stm>http://news.bbc.co.uk/2/hi/science/nature/2983045.stm
Fish Do Feel Pain, Scientists Say
By Alex Kirby
BBC News Online Environmental Correspondent
The first conclusive evidence of pain perception in fish is said to have
been found by UK scientists.
Fish have pain receptors like us
This complements earlier findings that both birds and mammals can feel
pain, and challenges assertions that fish are impervious to it.
The scientists found sites in the heads of rainbow trout that responded to
damaging stimuli.
They also found the fish showed marked reactions when exposed to harmful
substances.
The argument over whether fish feel pain has long been a subject of
dispute between anglers and animal rights activists.
The research, by a team from the Roslin Institute and the University of
Edinburgh, is published in Proceedings B of the Royal Society, the UK's
national academy of science.
The researchers, led by Dr Lynne Sneddon, say the "profound behavioural
and physiological changes" shown by the trout after exposure to noxious
substances are comparable to those seen in higher mammals.
[snipped]
[see above link for full article]
Jodi
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