Scientists Push To House More Lab Monkeys In Pairs

Scientists Push To House More Lab Monkeys In Pairs
Macaques are social animals, whether in a group enclosure like this one at the Gelsenkircen zoo in western Germany, or in the wild. But many research monkeys are still housed in separate cages.

Enhancing a research monkey's life by housing it with a pal often doesn't hurt the study, says a researcher who's done it. In her own experience, she says, "it actually helped to improve the science."

(Image credit: Patrik Stollarz/AFP/Getty Images)