Mice administer 'first-aid' to friends — even trying to bring the dead back to life

Two mice sniffing each other through an open ended wire cage. Conceptual image from a series inspired by laboratory mouse experiments.

Mice appear to administer first-aid if they find a fellow mouse unconscious, scientists have discovered.

They attempt to revive companions by licking at their faces, or even by pulling at their mouths or tongues, according to a study published Feb. 21 in the journal Science.