A Chinese researcher who implanted human genes into the brains of monkeys is defending his experiment
The research, undertaken by multiple universities and led by the Kunming Institute of Zoology in southwestern China, was intended to shed more light on the evolutionary process which led to human intelligence."Brain size and cognitive skills are the most dramatically changed traits in humans during evolution, and yet the genetic mechanisms underlying these human-specific changes remain elusive," said a report published on March 27 in the China-based journal National Science Review.
In Su's 2019 study, 11 rhesus monkeys were successfully implanted with copies of the human MCPH1 gene, an important marker for"brain development and brain evolution."Analysis of the monkeys' behavior and physiology showed they developed in a more human-like fashion, with better short-term memory and a faster reaction time compared to a control group.
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