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| | Social Impact: Animal Parts for People? |
 | | This is a subset of a debate over animals in research that, in western society, traces back to the ancient Greeks. |
 | | Key factors for both groups, along with most bioethicists, were animals’ phylogenetic relatedness to humans and their "sentience"—the degree to which they appear to share such human traits as intelligence, consciousness, self-awareness, ability to form intentions, and ability to feel emotions such as sympathy. |
 | | "While the pig is an animal of sufficient intelligence and sociability to make welfare considerations paramount, there is less evidence that it shares capacities with human beings to the extent that primates do," the Nuffield working group said. |
| science.education.nih.gov /newsnapshots/TOC_Xeno/Animal_Parts_/animal_parts_.html (935 words) |
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