Ancient DNA provides clues to the evolution of social behavior
... to the population crash. ''Maybe the evolution of sociality actually confers some advantage to withstanding pe...ty,'' she says. ''Most behaviorists would say that sociality is so complicated that it takes a while to evolve, but maybe if a species has to be social to surviv...Sociality of sweat bees evolved simultaneously during climate change
...Danforth. "It's also news to us that the origin of sociality in halictid bees was so recent." Once the team dated the evolution of the social behaviors to just 20 million to 22 million years ago, they researched what might have been going on in this time frame that would trigger the development of social beha...