 The worm removed from Bear is kept in a jar , and another is recovered from one of the scientists ' bodies . Mulder ( believing that the worms are extraterrestrial ) wants them kept alive , but Scully feels that they should be destroyed to prevent infection . The group check each other for black nodules and find none , although Mulder reminds Scully that the nodules disappeared from the dog over time . When Mulder finds Murphy in the freezer with his throat cut , the others ( including Scully ) believe that he has become infected and killed Murphy . Mulder is then locked in a storeroom . 
