social evolution

Members of species with shells they must hold onto for survival have larger sexual tubes than those with less precious private property.

Researchers studying macaques in Morocco find that socialization improves the monkeys’ odds of surviving the winter. 

Ecological challenges such as finding food and creating fire may have led the organ to become abnormally large, a new computer model suggests.

Social interaction influences the chimpanzee microbiome, increasing the number of microbial species the primates share.

Scientists describe the genetic changes associated with solitary-to-social transitions throughout bee evolution.

People tend to sniff their mitts after shaking hands with someone of the same sex, suggesting that the traditional greeting may transmit chemosensory signals.

Many social factors contributed to the evolution of male infanticide in mammal societies.

Scientists find that bonobos can form friendships and show concern for others.

Researchers identify a chromosome in ants that influences colony social structure and, much like the mammalian Y sex chromosome, doesn’t recombine.