Chinese scientists have developed test-tube monkeys, the first step toward creating genetically engineered simians, for research.

Since monkeys' physique, genetic make-up and behavior are very close to human beings, they are often used in research to find cures for human diseases.

Shanghai-based East China Normal University's scientists, led by Sun Qiang, developed seven macaques, and their findings were published in the August edition of the Proceedings of the National Academy of Sciences.