Scientists learn how vampire bat strangers make friends

We humans can explain how our relationships with college roommates and co-workers have formed over the years, but scientists haven't had a good grip on how friendly connections among strangers are made between animals—until ...

Communication makes hunting easier for chimpanzees

Similar to humans, chimpanzees use communication to coordinate their cooperative behavior—such as during hunting. When chimpanzees produce a specific vocalization, known as the "hunting bark," they recruit more group members ...

Altruism in bacteria—Gut microbes help family first

A recent discovery that, in real-world conditions bacteria, similar to animals, cooperate and selflessly act for the greater good of the group, could help scientists to predict how helpful and harmful strains behave. The ...

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