@ acoupleofbravedorks
Here goes nothing!
Starting out as just the “Destroyer Crabs” that have been found feeding off of live fish, the scientists are baffled by these creatures existing and exhibiting abilities of micro-oxygen, they have no known origin (As far as they know), and no known male specimens. They are constantly making various theories when they inspect their DNA, finding Crustacean, Trilobite, Eurypterid, and even a currently undetermined DNA in them. But then at one point they start seeing Destroyer Crabs with ichthyoid features, it’s then they realize that these monsters are absorbing DNA from the fish they consumed with micro-oxygen and have finally determined the other DNA is that of a bdelloid rotifer, an all-female animal known for absorbing DNA from other living things.
Soon enough, they start to become larger and are attacking people; starting to look more like their Aggregate Form. After people and Godzilla start to fight off the Aggregates, they’re reduced to a few that have various ichthyoid features. One with flying fish fins, another with a shark-like head (And a reference to the Gyo Shark Tank), and one with a pincer-tail. Eventually, the Shark!Destoroyah is forced to use her micro-oxygen blasts on her siblings in order to absorb their DNA and become her final form. Along with her classic abilities, she has the ability to produce “mini-clones” that partly resemble her Aggregate form. She and her mini-clones end up beaten by Godzilla, but she barely gets away. Somehow meets King Ghidorah, they team up and do evil shit, King Ghidorah falls in love with her carnage and brutality. They end up having kids that resemble different mixes of the two (Bronzalisk, Ghioxys, Nhidorah, Unnamed Vampiric Destoroyah Male Coward), among them is Desghidorah.
Yes, Desghidorah is retconned to Destoroyah and King Ghidorah’s child. They can produce electric shockwaves, shoot lightning from wings like their dad, spew micro-oxygen like their mom, energy claws, and can even make explosive fire blasts. Desghidorah is also able to produce mini-clones that are crustaceous one-headed dragons, among these mini-clones, one ends up becoming my iteration of Garugaru, who fights for good after being saved by people using cybernetics.
As for weaving other kaiju under Destoroyah? American scientists determine that bdelloid rotifers could be useful to create man-made kaiju (NOTE: All man-made kaiju/bdelloid rotifer kaijus are female unless specifically noted otherwise). Their first one being the Gryphon that they create by using a mix of puma, bat, electric eel, and horned toad DNA. The Gryphon produces the Probe Bats as her mini-clones. When the Gryphon dies, one Probe Bat is still alive and manages to steal a bit of DNA from a young Fire Rodan before scurrying off. Many years later, that same Probe Bat becomes my version of Bagorah.
More man-made kaiju are later produced. Among them are Dragoon, my version of the Fire Monster from Godzilla the Animated Series. They use a mix of Man-o-War, Mosquito, Mantis Shrimp, and Oil-eating bacteria. Another is my version of D.R.A.G.M.A., using a mix of ceratopsian kaiju, Rodan, oil-eating bacteria, MUTO, aphid, and other unknown sources. The aphid DNA allows D.R.A.G.M.A.s to bypass the “mini” part of mini-clone, making full blown new D.R.A.G.M.A.s.