Neuronal detection of social actions directs collective escape behaviour.

Neuronal activity in the midbrain and thalamus of Danionella cerebrum encodes social escape cues, enabling collective escape behavior based on visual perception of conspecifics.

• Why it matters: Understanding how social information influences escape responses is crucial for revealing the neural mechanisms underlying group survival strategies in animals, which are not well understood.
• What they did: Researchers imaged neural activity in adult glassfish viewing virtual conspecifics exhibiting escape or disappearance behaviors, focusing on neurons responsive to biological motion.
• The result: Findings demonstrate that neural responses to social cues enable fish to infer danger rapidly, facilitating collective escape, and highlight neural computations that support swift information sharing in groups.