Some critics, such as Marcus Feldman, a professor of population genetics at Stanford University, says the work on twins is tainted by politics.

ECONOMIST: WHAT WE LEARN FROM TWINS

That helps assure a good mix of genetics and a robust fish population.

CNN: Migrating fish get help in uphill battle

The topics include civil engineering, insect genetics, invasion biology, fish population dynamics, and toxic chemical exposures, among others.

FORBES: What Journalists Bring to Science Writing

Research firm Genesus Genetics estimates China's total pig population at more than 470 million.

WSJ: Dead Pigs Worry Shanghai

Here, the focus is on studying the genetics of diseases that particularly afflict the Chinese population, such as hepatocellular carcinoma, a form of liver cancer.

ECONOMIST: Chinese biotechnology