Young mice have been observed attempting to revive an anesthetized cage mate by grooming and biting it and will even pull aside the tongue to clear its airway. Li Zhang from the University of Southern California explained how 'They start with sniffing, and then grooming, and then with a very intensive or physical interaction,'. Mice that were attended to woke up and started walking again faster than uncared for mice, and once their charge had responded by moving, the carer mice slowed and then