This is a species of silicon-based life (humans, by comparison, are carbon-based) that prefers to feed on rocks. In a moving episode, “The Devil In The Dark,” the crew discovers that the aliens are actually intelligent and very loyal to their offspring — but only after the Vulcan alien Spock does a mind-meld with one of the creatures, which is being persecuted by miners angry at the destruction it has caused.
Comments are closed.