A surge in drug research in China has driven the cost of a laboratory monkey to about 140,000 yuan (US$20,260), a sum that exceeds the country’s average annual wage. Official government procurement records showed that prices had doubled in the last five years for such monkeys, which are widely used in the preclinical stage to check whether a drug is safe and how it is absorbed, broken down and cleared by the body. Analysts said the soaring cost was underpinned by a flood of drug-licensing deals...