Young mice seemingly attempt to revive an anaesthetised cage mate by grooming and biting it and will even pull aside the tongue to clear its airway ...

Several years ago, the University of Southern California neuroscientist began noticing that sometimes, when he placed an anesthetized mouse back in its cage, its cage mate would start acting ...

and his colleagues have filmed what happened when they presented laboratory mice with a familiar cage mate that was either active or anaesthetised and unresponsive. Over a series of tests ...

when he placed an anesthetized mouse back in its cage, its cage mate would start acting strangely, sniffing and biting around the unconscious mouse’s face. To Zhang, it almost seemed like the mouse ...