Kaiju

**Kaiju**, also referred to as **Daikaiju**, **Titans** and **Superspecies**, are lifeforms that exceed the supposed biological limitations on body mass, thus reaching colossal size. As a general rule, they feed upon various forms of radiation.

## Classification

The group, in reality, is a catch-all term - the group is polyphyletic, meaning that the species contained within are of differing lineages. The exact definition varies, but the defining characteristics utilized by most scientists are that the organisms exceed 45 meters in height or length, and have some connection to radiation, in most cases meaning that they are radiotrophic.

Particular individuals of non-kaiju species can also be classified as Kaiju - a notable example being Ramarak.

The term is not exclusive to organisms of Earth - Ghidorah was extra-terrestrial in nature, and is one of the prime examples of Kaiju.

### The term "MUTO"

The term MUTO, abbreviation of "Massive Unidentified Terrestrial Organism", was a used to describe all Kaiju in the early days of Monarch. Since then, however, it has applied specifically to the parasitic insectoid Kaiju since dubbed Jinshin-Mushi, due to that being their main identifying term during the 2014 Kaiju incidents. Following an identification and classification, Monarch personnel primarily used "Titan" as the term to address Kaiju.

## Biology

The only unifying factors that define "kaiju-ness" are that an animal achieves immense size (the cutoff point generally agreed to be 45 meters in length) , and that

Through processes that are not entirely or at all understood by researchers, kaiju violate a number of physical rules, such as the square-cube law. Kaiju diets also generally do not seem to match the energy outputs they exert - in many cases, the calculations made relating to the food they consume would not even allow them to move, but they do anyway. But perhaps most notable example of their exceptional power generation are the "energy blasts" (most often plasma) fired as defense/attack mechanisms by many species.

## Natural History

The origin of kaiju is a highly debated topic. Some researchers believe that their extraordinarily biology is simply a result of chance mutations, while others believe horizontal gene transfer via a radiovoric pathogen.

The first Kaiju are believed to have arisen in the Permian period, during a short period of increased radioactivity in Earth's atmosphere. Repeats of these events resulted in the following "waves" of Kaiju evolution.

In the modern day, most Kaiju species have only a single living individual, from which most research is gleamed.

## Relation with humans

Kaiju and man have a history longer than most realize. Numerous ancient civilizations, including the Minoans, Babylonians, and Atlanteans revered Kaiju as deities.

After the existence of Kaiju became public knowledge in 2014,

## List of Kaiju species

### Extant

Titanus Gojira

Titanus Rodan

Titanus Mosura

Titanus Kong

Titanus Jinshin-Mushi (MUTO)

Titanus Behemoth

Titanus Camazotz

Titanus Leviathan

Titanus Methuselah

Titanus Scylla

Titanus Baphomet

Titanus Tiamat

Titanus Typhon

Titanus Abaddon

Titanus Sargon

Titanus Bunyip

Titanus Mokele-Mbembe

Titanus Quetzalcoatl

Titanus Yamato No Orochi

Titanus Sekhmet

Titanus Ramarak/Skullcrawlers/*Cranium reptant*

Anguirus

Megalon

Baragon

Manda

Gorosaurus

Titanosaurus

Ebirah

Kamakuras

Battra

### Extinct

Titanus Ghidorah

Titanus Margygr

Shinomura

## Trivia

The depiction of Kaiju in Universum Eodem borrows primarily from the Monsterverse.

Aspects of their biology are taken from these fanon ideas: Here and here.