History Main / EndangeredSpecies

* ''BattlestarGalactica'': Humans.

** ''StarTrekIV'' suggests that humpback whales (currently ''not'' an example, although protected by international treaty) will become extinct in the near future. Presumably they'll become one of these along the way.

** ''StarTrek IV'' suggests that humpback whales (currently ''not'' an example, although protected by international treaty) will become extinct in the near future. Presumably they'll become one of these along the way.

* Star Trek IV

* In the ''{{Homeworld}}'' backstory, the Hiigarans.

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* The [[{{Stargate}} Asgard]], due to millenia of cloning cloned clones and having no original genetic material left. In the series finale they perform a species wide HeroicSacrifice, but apparently there are pockets of them in other areas.

* Most terrestrial lifeforms in the ''Half-Life'' verse (marine life is said to have gone completely extinct due to billions of leeches and the occasional ichtyosaur swimming around). After a large batch of Xenian lifeforms were teleported onto Earth, a planetary-scale Combine invasion occurred and that's even before the Combine set up their reproduction suppression field which can't be ruled out as being ineffective against anything but humans... If a mini world-war and two decades of global sterility count, then humans might as well be endangered. [[spoiler: At least until the suppression field was shut down and Kleiner urged everyone to "[[IfYouKnowWhatIMean do your part for the revival of our species]]"]].

* An InferredHolocaust may have occurred, followed by a MyGodWhatHaveIDone moment. Basically ResuscitateTheDog at a species-wide level.

* In ''StarTrek VI: TheUndiscoveredCountry'', Klingons.
** Star Trek nerd, forgive me: their home planet was becoming uninhabitable, and so the Klingon empire had to evacuate their capital and people to another planet, the economic drain of which made fighting the war with the Federation impossible. Their choice was to make peace, or lose the population of their home planet. But Klingons as a species were never endangered.

* After HouseOfM decimated the [[Comicbook/XMen mutant population]] to just a few hundred individuals, Homo superior became this. There was even a storyline with Beast visiting every EvilutionaryBiologist he knew to appeal to them for help restoring the X-gene. The first new mutant birth since M-Day has become a significant plot point in the X-Books.

* By the time of ''LordOfTheRings,'' elves have become this.

* Most terrestrial lifeforms in the ''Half-Life'' verse (marine life is said to have gone completely extinct due to billions of leeches and the occasional ichtyosaur swimming around). After a large batch of Xenian lifeforms were teleported onto Earth, a planetary-scale Combine invasion occurred and that's even before the Combine set up their reproduction suppression field which can't be ruled out as being ineffective against anything but humans... If a mini world-war and two decades of global sterility count, then humans might as well be endangered. [[spoiler: At least until the suppression field was shut down and Kleiner urged everyone to "do [[IfYouKnowWhatIMean your part]] for the revival of our species"]].

* The {{Stargate}} Asgard, though their extinction is not imminent, it is unavoidable.

** Ironically, the krogan -- who were armed by the Citadel races and sent out into the galaxy to fight the rachni -- suffered a similar fate: the Council deemed them too dangerous, and the krogan were afflicted with an artificially-created plague that all but sterilized their species. In an interesting twist, Mordin reveals that the scientists who created the disease wanted only to ''stabilize'' krogan birthrates, and are working to make sure the krogan aren't driven to extinction.

* Most terrestrial lifeforms in the ''Half-Life'' verse (marine life is said to have gone completely extinct due to billions of leeches and the occasional ichtyosaur swimming around). After a large batch of Xenian lifeforms were teleported onto Earth, a planetary-scale Combine invasion occured and that's even before the Combine set up their reproduction suppression field which can't be ruled out as being ineffective against anything but humans... If a mini world-war and two decades of global sterility count, then humans might as well be endangered. [[spoiler: At least until the suppression field was shut down and Kleiner urged everyone to "do [[IfYouKnowWhatIMean your part]] for the revival of our species"]].

* One episode of the TheWildThornberrys had a tortoise that was [[ThereIsAnother(almost)]] the LastOfHisKind. Sadly TruthInTelevision, as he was based on a real tortoise called Lonesome George.

* The [[Stargate Asgard]], though their extinction is not imminent, it is unavoidable.

* The EndangeredSpecies, A, must be a type of creature, object, phenomena, etc., for which there is an apparent distinct possibility they will all soon be [[KilledOffForReal gone forever]].

Compare LastOfHisKind, OnlyYouCanRepopulateMyRace, WhatMeasureIsANonUnique. Contrast ExplosiveBreeder.

* In ''MassEffect'', The Rachni are a sentient, if extremely alien, species of insectoids who were thought to be actually extinct. In the course of the game, you have the choice between setting the last surviving Queen free to let them repopulate, or extincting them entirely. A harder choice than it may seem, since the Rachni went near-extinct due to them embarking on a war with the Citadel Races, causing significant loss of life.
** In keeping with the trope, you'll have characters - both in your party and further abroad - arguing that you can't justify destroying an entire species, no matter how monstrous it looks, and how much damage it once caused (keeping in mind that the Rachni Wars are ancient history, and this one has PROMISED it won't rise up to threaten the world again.) And some who argues that it's time to 'finish the job'.

* Most terrestrial lifeforms in the ''Half-Life'' verse (marine life is said to have gone completely extinct due to billions of leeches and the occasional ichtyosaur swimming around). After a large batch of Xenian lifeforms were teleported onto Earth, a planetary-scale Combine invasion occured and that's even before the Combine set up their reproduction suppression field which can't be ruled out as being ineffective against anything but humans... If a mini world-war and two decades of global sterility count, then humans might as well be endangered. At least until the suppression field was shut down and Kleiner urged everyone to "do [[IfYouKnowWhatIMean your part]] for the revival of our species".