National Geographic is reporting that scientists in China have crossed rabbit and human cells which could eventually result in creatures that are part human and part animal. The scientists at the Mayo Clinic are performing similar experiments.
"William Cheshire, associate professor of neurology at the Mayo Clinic's Jacksonville, Florida, branch, feels that combining human and animal neurons is problematic.
"This is unexplored biologic territory," he said. "Whatever moral threshold of human neural development we might choose to set as the limit for such an experiment, there would be a considerable risk of exceeding that limit before it could be recognized."
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