Changes in a female monkey's social status lead to changes in her immune system, and researchers writing in this week's edition of the Proceedings of the National Academy of Sciences (PNAS) Early Edition suggest that the findings may be applicable to humans as well.

Males of the world, fear not -- researchers have determined that the chromosome which determines maleness is not shrinking after all, and concerns that the gender could be headed for extinction are apparently unfounded.

Oxytocin, the "love hormone" that builds mother-baby bonds and may help us feel more connected toward one another, can also make surly monkeys treat each other a little more kindly.

Researchers at University of Otago in New Zealand have found that pigeons are able to learn abstract rules about numbers, an ability that until now had been demonstrated only in primates.

The South China Center for Innovative Pharmaceuticals, Sun Yat-Sen University, and BGI, the world's largest genomic organization, announced that they were among the research organizations from China, US and UK comprising an international research group that completed the genome sequence and comparison of two non-human primate animal models - Chinese rhesus macaque and cynomolgus.