According to a new commentary paper in the journal Nature Food, some of the worst animal suffering in the world can be prevented at a rate of just a couple of pennies per hour: the extreme pain experienced by chickens raised for meat.

Over the last 75 years, chickens have been bred to grow incredibly large and incredibly fast. Their rapid growth rate has made chicken the most affordable and plentiful meat in the US, where over 9 billion are raised and slaughtered annually.

But it’s come at the cost of making chickens suffer terribly throughout their short lives from a range of health and welfare issues, like heat stress, heart failure, and lameness — difficulty walking — which can be so severe that chickens die of dehydration or starvation because they can’t even stand and move to get wa

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