I'm not sure that all animals suffer just like a human is suffering, I think that suffering relating to consciousness and time awareness which I don't think all the animals have that. For example, if ISIS will chop my leg I will feel unbearable pain at the moment and after that I will suffer from the thoughts that ISIS put an end to my soccer career, I won't have leg for the rest of my life, the memory of the accident or no woman will ever want to marry a guy without a leg and so on. So of course chickens can feel pain, but I'm doubt they can suffer like humans are as I tried to show before.
"The genius is necessary only for the first step"
"A nation can survive its fools, and even the ambitious. But it cannot survive treason from within. An enemy at the gates is less formidable, for he is known and carries his banner openly. But the traitor moves amongst those within the gate freely, his sly whispers rustling through all the alleys, heard in the very halls of government itself. For the traitor appears not a traitor; he speaks in accents familiar to his victims, and he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men. He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist. A murder is less to fear"
Cicero Marcus Tullius
If you've ever worked with rescue animals (I have -- my cat happens to be one), it is very clear that they have memories and experience emotional suffering, despite the fact that most domestic animals don't rank very high in the order of animal intelligence.
Words cannot express how upset I get even reading stories about what people have done to helpless animals. It hits me viscerally. I'm the one who instantly flips the channel when images of tortured animals suddenly appear on the screen. I live in a rural county, and newspaper photos of emaciated horses left to starve and die of thirst make me literally break into tears.
I know it's illogical, because in the wild animals torture and eat each other, but when it comes to domesticated pets being abused for sport, or game animals suffering with multiple arrows just because some idiot wanted target practice, I just get crazy. I simply can't allow myself to dwell on this kind of evil because it eats me up inside.
It bothers me way more than the thought of people suffering! They are so innocent!
Yeah, i somewhat admire philosophies such as jainism that aim to avoid harming any living thing. I dislike the idea of scientists experimenting on animals for human benefit, or humans encroaching on animal habitats, and i especially abhor the suffering of pets who are more loving than most humans i've met.
However, there is and always has been suffering in the animal kingdom. Lions when killing their prey do not care about the victim's suffering. It's not like a shark is going to give its meal a lethal injection before tearing into it, the way scientists will do to their lab rats.
Suffering (when limited) also serves the purpose of letting us know to escape the current situation and avoid similar in the future.
You and many others, including me. They're cowards that pick on helpless creatures that nature and evolution put us in charge of - they aren't here to be cruelly and callously treated by us. I'd like to see something done about how cattle and chickens being readied for wholesale slaughter by mega-giant firms are being treated, too. Very little humane treatment is being shown to them - packing them together so tightly that they can't move at all in any direction is wrong. They're living beings that feel pain - not robots. So sad...