Their report calls for a new rules to supervise sensitive research that involves humanising animals.
One area of concern is "Category Three" experiments which may raise "very strong ethical concerns" and should be banned.
An example given is the creation of primates with distinctly human characteristics, such as speech.
Exactly the same scenario is portrayed in the new movie Rise Of The Planet Of The Apes, in which scientists searching for an Alzheimer's cure create a new breed of ape with human-like intelligence.
The report also acknowledges the "Frankenstein fear" that humanising animals might lead to the creation of "monsters".
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