History Main / BioweaponBeast

* ''Film/{{Tremors}}'': In the first film, one of Val's theroies for the origins for the Graboids is that they were made by the US government as "a surprise for the Russians". Subverted in the sequel, which clarifies that they're a naturally evolved lifeform.

* ''VideoGame/Palworld'': Shadowbeak was the first success of [[MadScientist Victor Ashford]] who sought to create [[UltimateLifeform the ultimate]] combat Pal. He accomplished this via a cruel experiments that killed dozens, if not hundreds of [[{{mons}} Pals]].

** [[OurOrcsAreDifferent Super Mutants]] were designed to be SuperSoldiers before the nuclear apocalypse. Humans exposed to the FEV transform into giant hulking brutes, almost always at the expense of their higher functions of intelligence, though focusing on staying educated during the process can avoid this. They're also generally extremely violent and profoundly antisocial to anything besides Super Mutants, and are ultimately sterile -- there is a significant amount of variety between the Super Mutants of various games, mostly because they came from different batches of FEV with slightly different results (for example, the Mariposa strain that West Coast Super Mutants came from had a higher chance of producing both intelligent and potentially sociable Super Mutants, while the Capital Wasteland and Commonwealth strains made Super Mutants grow much larger with age), but sterility is shared between all of them.

An AttackAnimal is useful, but sometimes what nature provides is lacking. So you create your ''own'' attack animal, genetically engineering existing organisms or creating your own. Maybe add some cybernetics just to make it even stronger. [[GoneHorriblyWrong Needless to say,]] [[GoneHorriblyRight this often backfires]], proving that GeneticEngineeringIsTheNewNuke. Maybe this new organism [[NonMaliciousMonster would rather just be left alone]], and refuses to actually fight. Maybe it goes feral and becomes a dangerous monster roaming the wilderness. Maybe it actually works perfectly, but those in charge of it are far from ethical.

* ''VideoGame/{{Fallout}}'': If a given species of monster isn't a NuclearMutant, it's almost always some kind of bioweapon engineered by the pre-War government that escaped and went feral after the nuclear apocalypse. Most of them created through the [[MutagenicGoo Forced Evolutionary Virus]].

* ''Film/{{Tremors}}'': In the first film, one of Val's theroies for the origins for the Graboids is that they were made by the US government as 'a surprise for the russians'. Subverted in the sequel, which clarifies that they're a naturally evolved lifeform.

* ''VideoGame/ImpossibleCreatures'', has this as it's main gameplay mechanic, being able to custom make your own units out of [[MixAndMatchCreature the parts of other animals]].
* ''{{VideoGame/Metroid}}'':

* ''VideoGame/{{Iconoclasts}}'' reveals that the [[spoiler: Starworm]] is one of these once its head [[spoiler:opens up to reveal that a birdman was piloting it all along]].
* ''{{VideoGame/Metroid}}''
** The titular creatures themselves were created by the Chozo [[spoiler: specifically for the purpose of combatting the X-parasites which otherwise had no natural predators]]. Many have since attempted to make them into ''their'' AttackAnimal and more often than not, it ends up backfiring.

* ''Film/TheBlob1988'': The Blob in this version is revealed to be the accidental result of an American military experiment conducted on a space satellite. Although the military scientists responsible didn't expect it, [[JustThinkOfThePotential they're very pleased with the result]] and talk about deploying it against the Soviets. (In the original, it's just an alien who visits Earth to find food.)