Mouse-to-mouse resuscitation

Mice that find another mouse unconscious will attempt to resuscitate it in a similar manner to people giving first aid. Researchers found that if a mouse encountered an anaesthetised friend, it would begin a grooming routine focused on the head. If that didn’t rouse their companion, the rescuer began to bite around the mouth and pull at their tongue. This behaviour was more forceful in mice that had spent more time with the unconscious individual, and resulted in a quicker recovery time.