A new social role for echolocation in bats that hunt together

Searching for food at night can be tricky. To find prey in the dark, bats use echolocation, their "sixth sense." But to find food faster, some species, like Molossus molossus, may search within hearing distance of their echolocating ...

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 ...

What teens see in closed online spaces such as the Discord app

Ever since the earliest days of the internet in the 1980s, getting online has meant getting involved in a community. Initially, there were dial-up chat servers, email lists and text-based discussion groups focused on specific ...

Cooperation driven by reciprocity, not conformity

From an evolutionary perspective, cooperating with others can yield benefits that increase chances of survival. But what are the conditions that motivate us to cooperate? New research suggests that reciprocity - cooperation ...

Females choose sexier friends to avoid harassment

(PhysOrg.com) -- Scientists have observed a strategy for females to avoid unwanted male attention: choosing more attractive friends. Published today (7 December) in the journal Proceedings of the Royal Society B, the study ...

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