->''Pray that there's intelligent life somewhere up in space,\\
'Cause there's bugger all down here on Earth.''
-->-- '''Mr. Pink,''' ''Film/MontyPythonsTheMeaningOfLife''

A Stock Joke that usually goes something like this:

'''Alice''': "Did you hear that scientists are looking for intelligent life on other planets?"\\
'''Bob''': "I guess they gave up on finding any on ''this'' planet!"

Or in other cases:

'''Alien agent/scientist''': "I came to this planet many years ago to investigate the rumors about existence of intelligent life, and I can safely say that they have been thoroughly disproven."

Related to HumansAreMorons, SufficientlyAdvancedAlien and ThisLoserIsYou. Contrast HumansAreCthulhu.

* This conversation in the ''Fanfic/EmpathTheLuckiestSmurf'' story "Where No Smurf Has Gone Before", in regards to the alien spaceship that crash-landed in the Smurf Forest.
-->'''Brainy:''' What I don't undersmurf is where the spaceship smurfed from or what it's smurfing out here in the Smurf forest.
-->'''Snappy:''' Maybe there were alien beings on board that ship, Brainy, who decided to smurf overboard before you had a chance to bore them to smurf.
-->'''Slouchy:''' Yeah, they'd probably smurf that there's [[ButtMonkey no intelligent life down here]].
* ''[[Film/TheAdventuresOfCaptainProton Captain Proton]] and the Planet of Lesbians''. Earth has been attacked by a DeathRay from Venus.
-->"Venus?" exclaimed Buster. "But that's impossible. According to the latest scientific reports, conditions on that planet make it unable to support any form of intelligent life!"
-->"The mysteries of the universe are indeed mysterious," said the President mysteriously. "Scientists have yet to prove that intelligent life exists on Earth. Who knows what wonders lie beneath the cloudy veils of that inscrutable world?"

* The aforementioned "The Galaxy Song" from ''Film/MontyPythonsTheMeaningOfLife''.
* The beginning of ''Film/MuppetsFromSpace'', as well as a trailer joke there.
** The joke used in the film proper was a JustForFun/StatlerAndWaldorf quip about how they don't have lives on earth (as in social lives).
* The struggling actor played by Creator/RobinWilliams in ''Film/MrsDoubtfire'' makes this joke during a scene where he demonstrates his ability to "do voices".

* A chapter of Creator/CarlSagan's book ''Pale Blue Dot'' is titled "Is There Intelligent Life On Earth?" and covers a fictional alien visitor observing things from space that cause it to ask that question.
* Used near the end of the novel ''George's Cosmic Treasure Hunt'': "And through the portal they could see one of the most beautiful planets in the whole galaxy, where there is warmth, and light, and water. Where there is life. Some of it, possibly, intelligent."
* There is a short story by Lino Aldani, where an astronaut visits an alien planet and encounters a robot of unknown origin. His weapons are inefficient, he tries to run away, the robot catches up, touches his head... and then moves away. You see, the robot was left by an alien race to catch specimens for a zoo, but only ones sufficiently evolved, with developed brains.

* In the ''Series/{{Frasier}}'' episode ''The Candidate'', Frasier and Niles were both promoting a political candidate who they learn believes he was abducted by aliens. When they discuss whether they can keep supporting him in light of this there is this exchange:
-->'''Niles:''' Answer me this: can you tell me with any certainty that in such a vast universe there isn't intelligent life on other planets?\\
'''Frasier''': ''(glares)'' At the moment, I'm not sure there's intelligent life in this ''kitchen''!
* On ''Series/HomeImprovement'', Brad and Randy are trading insults and Randy says that Brad would fit in on Mars where there's no sign of intelligent life. Tim scolds them with "First of all... they've never confirmed that."
* To be expected from TheSnarkKnight of ''Series/BlakesSeven''.
-->'''Blake:''' Does the planet support any intelligent life?\\
'''Avon:''' Does the Liberator?
* Short-lived Spanish comedy show ''El peor programa de la semana'' had a regular NewsParody segment that once featured the headline "The doubts of the interstellar scientific community over the existence of intelligent life on planet Earth persist."

* Music/EricBogle uses the joke in his song "Beam Me Up Scotty":
-->''There must be intelligent life out there, I hope so, there’s not much down here''

* ''ComicStrip/CalvinAndHobbes'' (''Scientific Progress Goes "Boink"'', page 29):
-->'''Calvin''': Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.
** Recycled by ''ComicStrip/{{Shoe}}''.
* ''ComicStrip/{{Dilbert}}'' has [[http://dilbert.com/strip/1993-12-13 this strip from 1993]], where Dilbert is trying to rein in his co-worker's sales pitch:
-->'''Sales Guy:''' And our product has a thirty terabit RAM cache, just like your company needs. Tell him, Dilbert.
-->'''Dilbert:''' It has no RAM.
-->'''Sales Guy:''' And it's capable of detecting tachion field emissions.
-->'''Dilbert:''' You're confusing us with "[[Franchise/StarTrek Star Trek]]" again, Stan.
-->'''Sales Guy:''' We'll build that stuff into the next free upgrade.
-->'''Customer:''' We'll take it!
-->'''Dilbert:''' ''[thinking]'' Beam me up, Spock. There's no life on this planet.
* Used in ''ComicStrip/{{Mafalda}}'', when she and her friend Felipe eagerly await the radio news on the latest space flight to Mars, Felipe comments excited on how amazing it is that there may be life on other planets. When the radio instead only gives news on the Vietnam war and other conflicts, Mafalda says that the amazing thing is that there is life on ''this'' planet.
* ''ComicStrip/{{Ziggy}}'': "We're looking for intelligent life. If you find any, call this number."

* In a HaveANiceDeath sequence from ''VideoGame/SpaceQuestVTheNextMutation'', two aliens watch Roger go down in flames over their planet (because he was TooDumbToLive, the game suggests):
-->'''Crumpella''': I wish we would discover someone else out there among the stars...\\
'''Slep''': Don't be silly, Crumpella! Everyone knows there's no intelligent life out there!

* Used with alternate dimentions instead of space in the ''Webcomic/GeneralProtectionFault''/''Webcomic/KevinAndKell'' crossover, when Ki and Nick are visiting Kevin & Kell's world - filled with {{Talking Animal}}s of every size and shape - but no humans. Leading to this exchange...
-->'''Lindesfarne''': So in your world, there's only ONE intelligent species?\\
'''Ki''': Yeah, [[SapientCetaceans dolphins]]. Just kidding... but sometimes I think the jury's still out on us humans.\\
'''Lindesfarne''': But surely, with no significant differences to drive you apart, you must all live in peace and harmony!\\
'''Ki''': ...
* In ''Webcomic/TheInexplicableAdventuresOfBob,'' the alien Nemesites have held the lease to our planet for eons, designating it as a nature preserve, and consider the young species of humanity to be unintelligent wildlife. Princess Voluptua is deeply concerned about whether changing that legal designation to grant humans Imperial Citizenship would do mankind more harm than good.

* ''WesternAnimation/JohnnyBravo'' had this in one episode as an {{Expy}} of Captain Kirk said that there was no intelligent life there while in the middle of a park full of people right before the title character ended up switching places with him in a beam up on a parody of ''Franchise/StarTrek''.
* ''Disney/LiloAndStitch'': Upon discovering that the titular alien has landed on an isolated island - ''Hawaii'';
-->'''Grand Councilwoman''': Can we not simply destroy the island?
-->'''Pleakley''': NO, crazyhead! The mosquito's food of choice, primitive humanoid lifeforms, have colonies all over that place!
-->'''Grand Councilwoman''': Are they intelligent?
-->'''Pleakley''': [[TooDumbToLive No]]. But they're very delicate. In fact, every time an [[ColonyDrop asteroid strikes their planet]], [[IWantMyJetpack they have to begin life all over.]] Fascinating, isn't it?
** However, [[spoiler: it becomes clear by the end of the movie that this was actually a [[SubvertedTrope subversion]]; mosquitoes aren't endangered, but the humans tricked the aliens into making Earth a protected habitat on the mosquitoes' behalf so that the aliens would leave them alone.]]
* Buzz Lightyear's introduction in ''WesternAnimation/ToyStory'' could be read as a more subtle version of this. Immediately prior to meeting the other toys, Buzz, thinking he's a real space ranger, describes the "planet" (actually Andy's bedroom) that he finds himself in: "There seems to be no sign of intelligent life anywhere."
** A screencap of the scene has become something of a small internet meme in which it gets juxtaposed with particularly stupid comments.
* In one episode of ''WesternAnimation/GarfieldAndFriends'', an alien, having observed the antics of the farm's residents (it was in the ''ComicStrip/USAcres'' segment), reports that the mission to find intelligent life has failed.
* ''WesternAnimation/DangerMouse'': In "The Aliens Are Coming," DM and Penfold have a rendezvous with a visiting spacecraft which houses what looks like a small mechanical being that is quite mischievous. After DM dispatches of it, a booming voice calls out "Well, get's go home, Gary. There's no intelligent life on this planet."

* Kent Hovind used this joke in one of his "lectures". Given that Mr. Hovind is a young Earth creationist whose views are often considered spurious even by ''other'' young Earth creationists, one may wonder if this actually helps to confirm or refute the trope.
* On a T-shirt: "[[BeamMeUpScotty Beam me up,]] [[Series/StarTrekTheOriginalSeries Scotty]]! There's no intelligent life down here!"
** Also on a pin (a yellow pin, to be specific).
** On a similar shirt: "Beam me up, Scotty...this planet sucks!"
* The tongue-in-cheek [[http://www.totl.net/STI/ Search for Terrestrial Intelligence]] project from the 90s is still looking.