• This is the first time we hear Zoidberg use the f-word in the Futurama series. It is bleeped however and it is very likely that he mispronounced it due to his accent.
  • We also see Zoidberg's teeth when a bird passes by him and he eats it. This is the first time we see his teeth since the first season. However his teeth are shown in aquamarine blue rather than the regular white.


  • The title is an unmistakable reference to the 1991 horror/thriller film Silence of the Lambs, which makes sense because it deals with a serial killer.
  • The community on the moon was named Aldrin's Gulch after the second man to walk on the moon Edwin "Buzz" Aldrin.
  • The robot who every one thought was Bender is named Billy West and Fry replies that he thinks it's a stupid name (Billy West is the voice of Fry, Professor Farnsworth, Zoidberg, and many other characters).
  • Bender calling himself Mr. X is a reference to The Simpsons when Homer became a web snoop.
  • "We're in space, where no one can here you clamp." is a reference to the tagline 'In space no one can hear scream.' from the 1979 movie Alien.
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