From an evolutionary perspective, contagious yawning may have evolved as an adaptive social cue, helping groups tosignal and coordinate times of activity and rest.

Question

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Studies have found that contagious yawning is more likely to occur within social groups and can serve as a nonverbal communication of fatigue or readiness to rest. This may have provided an evolutionary advantage for groups to synchronize activity and rest patterns, leading to improved coordination and efficiency.

From an Evolutionary Perspective, Contagious Yawning May Have Evolved as an Adaptive