Conspecifics confer survival advantage in the face of night-light polluted environment: Evidence from melatonin secretion, sleep, mood and cognitive performance in Indian house crows

Jul 18, 2025Hormones and behavior

Living with Others helps Indian House Crows survive night-time light pollution by supporting sleep, mood, and thinking

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Abstract

Group housing Indian house crows under dim light conditions improved cognitive performance and reduced depressive-like responses.

  • Under dim light conditions, group living improved mood and cognitive performance in Indian house crows.
  • No significant changes were observed in melatonin levels or sleep consolidation due to group housing.
  • Gene expression changes associated with mood and cognition were noted in brain regions related to higher-order functions.
  • Increased interactions with conspecifics may contribute to the survival strategy of this social species.

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