Corporate vigilance
This phenomenon has not been investigated in mammals, but could correspond to the "corporate vigilance" found in birds.
Corporate vigilance |
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In the wild neither domesticated herbivores such as cows or sheep, nor
wild herbivores (e.g. antilopes) in a group sleep simultaneously.
This phenomenon has not been investigated in mammals, but could correspond to the "corporate vigilance" found in birds.
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©1998 BITS OF SLEEP (Demo) : Animal sleep: Behavioral sleep.