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Legendary Pictures Monster
The M.U.T.O.s in Godzilla 2014
Nicknames Massive Unidentified Terrestrial Organism, Winged M.U.T.O.,
Eight-Legged M.U.T.O., MUTO, Muto, Hokmuto, Femuto
Species Prehistoric Parasite
Height 60.96 meters (Male)[1],
91.44 meters (Female)[1]
Forms Larval stage[2]
Eight-Legged Female M.U.T.O.
Winged Male M.U.T.O.
Relations Unhatched Eggs,
Each Other (Mates)
Allies Other M.U.T.O.
Enemies Godzilla
Created by Gareth Edwards, Max Borenstein,
Matt Allsopp
Portrayed CGI
First Appearance Godzilla (2014)
More Roars
This page covers the two monsters identified as "M.U.T.O.s" in Godzilla (2014). For general use of the term "M.U.T.O.," see M.U.T.O. (designation).
This is our needle in the haystack, people. M.U.T.O.: Massive Unidentified Terrestrial Organism. It is, however, no longer terrestrial; it is airborne. „ 

Admiral Stenz about the male M.U.T.O. (Godzilla)

The M.U.T.O.s (ムートー,   Mūtō?) are parasitic kaiju created by Legendary Pictures that appear in the 2014 Godzilla film, Godzilla.

Prehistoric parasites that thrived at the same time as Godzilla's species, the M.U.T.O.s survived by attacking and killing members of Godzilla's species and laying their eggs in their radioactive carcasses. Two M.U.T.O. spores left in the carcass of a Godzilla survived for millions of years buried deep underground in the Philippines, only to be uncovered by a mining operation in 1999. A male M.U.T.O. emerged from its spore and began feeding on a nuclear reactor located in Janjira, while the female emerged from a nuclear waste storage facility in Nevada years later in 2014. The M.U.T.O.s met in San Francisco and began building a nest, but Godzilla arrived in the city to stop them from reproducing. After a long battle, Godzilla successfully killed both M.U.T.O.s, while the military destroyed the creatures' nest, successfully preventing the M.U.T.O.s from repopulating. As Godzilla's foes in the first entry of the MonsterVerse, the M.U.T.O.s were the first opponent faced by Godzilla in a film since Monster X ten years earlier.


The M.U.T.O.s are known to have been developed from Rokmutul and Pterodactyl, two early monsters from the development of Godzilla. In the Comic-Con 2012 teaser trailer for the film, an unnamed, tardigrade-like, multi-legged monster was created to confirm that Godzilla would be fighting another monster in Legendary Pictures' Godzilla.

According to witnesses of the Godzilla trailer shown in Comic-Con 2013, the M.U.T.O. originally were spider-like creatures with long, thin limbs and scythes.

One of the original screenplays of Godzilla had the male M.U.T.O. emerge from its chrysalis in Hokkaido, Japan, instead of the fictional city of Janjira. The female M.U.T.O. still appeared in Nevada, however.[3]

The M.U.T.O.s went through several dozen concepts before Legendary settled on their final designs. Director Gareth Edwards at first wanted a design akin to a crab, but this was discarded as Jim Rygiel explained that the M.U.T.O.s "had to be menacing enough to take on Godzilla, but sort of facile enough to move around the city. Yet still be based on some sort of natural look. [...] We had to somewhat fit into nature because that's what Godzilla's battling in this film is nature, basically."[4] The initial design had a face that was mostly featureless and nearly eyeless.[5] Artists from the Moving Picture Company, the visual effects company responsible for much of the computer animation in Godzilla and the creation of the CGI models for the M.U.T.O.s, later added an articulated mouth and more definite eyes as the kaiju's designs developed, the eyes being added for the purposes of small-scale animation close-ups.[5] Some concepts had the male M.U.T.O. with four wings.[6] At one point, the four wings were shaped like the X-wing starfighter from Star Wars.[7] Artist Matt Allsopp created several designs for the M.U.T.O.s, including a female that featured a much stubbier head[8] and a male with only six total appendages and four wings. The four-winged design would later be dropped as Allsopp felt the wings were "too much like a dragon."[7] The final design of the male M.U.T.O. was also created by Matt Allsopp.[9]


Main article: M.U.T.O. (designation).

The M.U.T.O.'s name is an acronym for "Massive Unidentified Terrestrial Organism."[10] According to Godzilla: Awakening, this is a designation Monarch gives to all giant monsters as a sort of placeholder name. In this comic, both Godzilla and Shinomura were known as M.U.T.O.s before being given their own individual names. In addition, in the film Kong: Skull Island, Monarch agent William Randa states that his organization's purpose is to hunt Massive Unidentified Terrestrial Organisms.

In one of the original screenplays for Godzilla, the M.U.T.O.s were called "Hokmuto" and "Femuto," which were short for "Hokkaido M.U.T.O." and "Female M.U.T.O.," respectively.[3]


The M.U.T.O.'s bodies are grayish-black and red (although depicted as grayish-black and white in the film when exposed to certain levels of light, like from fire). The shape of their head is reminiscent of Gyaos, and they have triangular jaws, with the male M.U.T.O. having two 'mandibles' in his chin while the female only has one. The female M.U.T.O. has two pairs of forelimbs and a smaller pair on its chest, and is much bigger than the male M.U.T.O., being just smaller than Godzilla. The male M.U.T.O. is morphologically identical except that one of the two forelimb pairs is modified into his wings.  Both M.U.T.O. have red eyes and two hind legs, and the species is capable of long-range echolocation.


As individuals, the M.U.T.O.s aren't given much character construction. Being prehistoric parasites, their sole goals revolve around consuming radiation and reproduction.

The male, being the first member to be encountered, is described as young, growing, looking for food before meeting with the female, so he consumes radiation to gain strength. When he encounters Godzilla for the first time, he reacts with hostility and becomes defensive, attacking him whenever an opportunity becomes available and evading when possible.

The M.U.T.O.s display courtship
The female, once the male had matured enough, awakened from her dormancy and traversed through Las Vegas and other environments to meet with the male, who brought with him a nuclear warhead as a sign of courtship for their eggs to feed upon. She seemed to exhibit pain when laying her eggs in the M.U.T.O. nest in San Francisco, and became hostile and defensive when Godzilla appeared and fought with him alongside the male M.U.T.O. to defend their nest.

As a team, they are powerful and able to best Godzilla with their combined strength. If nothing had distracted them from fighting Godzilla in San Francisco, they may have killed him.

When they noticed their nest had been destroyed, the female exhibited a sense of loss over the demise of her eggs and then anger, but how much of this sense of loss is debatable, as she became angry and looked at Ford Brody, possibly marking him as the one responsible, but was unable to take action when Godzilla used his atomic breath on her, knocking her out.

The male attacked Godzilla just before he could attack the female again, showing a protectiveness for her, even willing to risk his own life for her until she recovered.


The M.U.T.O. are ancient parasites that come from the same era and ecosystem as Godzilla. Much like him, the M.U.T.O. feed off of radiation. However, unlike the surviving Godzilla, who adapted to live at the bottom of the ocean and feed off the planet's natural radiation, the M.U.T.O. are actively drawn to sources of man-made radiation such as nuclear warheads and energy plants.



Godzilla (2014)

The male M.U.T.O.'s spore
The M.U.T.O.s were discovered in the Philippines in 1999 after a mining operation drilled into a cave containing two pods containing the M.U.T.O.s, one of which had already hatched. The newly hatched male M.U.T.O, who had hatched after being disturbed by the cave collapsing, burrowed his way to the Janjira nuclear power plant in Japan, where he caused the plant to collapse from underneath, killing Sandra Brody and several other workers, and causing the entire area to be evacuated because of radiation leaking from the plant. Despite the destruction of the plant, the M.U.T.O. attached himself to the reactor and entered a cocoon-like state, absorbing all the radiation from the surrounding area. The second pod containing the female M.U.T.O was taken by the Americans to the Yucca Mountain Nuclear Waste Repository in Nevada.
The male M.U.T.O. at the Honolulu airport

For the next 15 years, the organization Monarch maintained a research base in the ruins of the Janjira plant, where they observed and studied the M.U.T.O. while it fed on the reactor. As the reactor was depleted and the M.U.T.O. matured, it began giving off electromagnetic pulses which interfered with Monarch's equipment. Ishiro Serizawa, who was in charge of the operation, regretfully gave the order to kill the M.U.T.O. before it could destroy their base. The cocoon was destroyed with electrical currents released from cables surrounding it. A group of armed operatives approached the remains of the cocoon to confirm the M.U.T.O. was destroyed, but the creature was still alive and attacked them. The M.U.T.O. laid waste to the power plant once again before sprouting his wings and taking off. The United States Navy, under the command of Admiral William Stenz, began to pursue the M.U.T.O. as it crossed the Pacific Ocean. Eventually, the male M.U.T.O. arrived in Hawaii, where it had dragged a Russian nuclear sub ashore and was feeding on its torpedoes. A group of soldiers were sent to investigate, but were attacked by the M.U.T.O. Fighter jets were sent in to try and stop the creature, but the M.U.T.O. released an EMP, causing the jets to fall out of the sky and crash. The M.U.T.O. proceeded to terrorize the Honolulu International Airport, but was confronted by Godzilla, who had come ashore to hunt it. The two monsters briefly battled until the M.U.T.O. retreated back over the ocean, with Godzilla in pursuit.

Meanwhile, Serizawa and his assistant Vivienne Graham concluded that the male M.U.T.O. was using echolocation to signal to the female M.U.T.O. that he was mature and ready to mate. Serizawa worried that the spore containing the female was not actually dormant, and the military sent a team to the waste depository to investigate. When the soldiers arrived, the facility was destroyed and the female M.U.T.O. had already broken out. The female M.U.T.O. terrorized the city of Las Vegas and began to head west to California. The military formed a plan to lure both M.U.T.O.s and Godzilla out to sea with a nuclear warhead, then detonate it in an attempt to kill all three. Two warheads were tranported via a train, but the female M.U.T.O. intercepted it in the California wilderness, killing all the personnel except for Ford Brody and eating one of the warheads. The other warhead was recovered and airlifted to San Francisco Bay, where it was armed, but it was stolen by the male M.U.T.O., who presented it to the female in downtown San Francisco.

The M.U.T.O.s tag team Godzilla

After acquiring the warhead, the female M.U.T.O. created a nest and attached her eggs to the warhead, nourishing them with the radiation. The male meanwhile attempted to distract Godzilla, who had broken through the Golden Gate Bridge and come ashore. Eventually, Godzilla reached the nest and took on both M.U.T.O.s at once, while an extraction team led by Ford Brody arrived to recover the armed warhead. The bomb was removed from the nest, and Ford ignited a gas explosion to destroy the M.U.T.O.s' eggs. The explosion attracted the attention of the M.U.T.O.s, who had overpowered Godzilla, and they went to investigate. The female M.U.T.O. was stricken with grief after seeing her young killed, but became enraged when she saw Ford, the man responsible. Before the M.U.T.O. could kill Ford, Godzilla emerged from behind her and pummeled her mercilessly with his atomic breath. The male M.U.T.O. attacked Godzilla from behind, allowing the female to pursue Ford and his team as they attempted to take the bomb out to sea. When the male M.U.T.O. attempted to strike Godzilla from behind once again, Godzilla anticipated it and smacked the M.U.T.O. with his tail, impaling him on a building and killing him.

The female M.U.T.O. is killed by Godzilla's "kiss of death"

Ford's team arrived at the docks with the bomb, but were all slaughtered by the female M.U.T.O., leaving Ford the only one left. Ford grabbed the bomb and placed it on a boat. Unable to defuse it, he started the boat in an attempt to take it out over the bay before it could detonate. However, the female M.U.T.O.'s EMP field disabled the boat, leaving her face-to-face with Ford. Ford drew his pistol and aimed it at the M.U.T.O., but knew he stood no chance and closed his eyes as she prepared to kill him. Suddenly, the female M.U.T.O. was pulled back by Godzilla, who pried open her jaws and fired his atomic breath down her throat, severing her head from her body and killing her.


Both M.U.T.O.s have several abilities.


Both M.U.T.O.s can use echolocation to communicate, find a source of radiation, and locate each other.

Electromagnetic Pulse

The male M.U.T.O. is able to unleash electromagnetic pulses from his claws, which can disable electric apparatuses in a five-mile-wide radius. The female can instead surround herself with an EMP field, labeled the "Sphere of Influence" by the news, which performs the same function. There doesn't appear to be any limit to how often either M.U.T.O. can use their EMP abilities. In the official novelization, it is explained the EMP ability evolved as a defense mechanism, used to prevent Godzilla's species from using their atomic breath. This purpose is never alluded to in the film, but in an earlier screenplay, it is explicitly mentioned that Godzilla cannot use his atomic breath when near the female M.U.T.O.


The male M.U.T.O. has wings which he can use to fly. The speed at which he can fly is undetermined.


The female M.U.T.O. has the ability to reproduce sexually. She lays hundreds of eggs near radioactive objects so that when her offspring hatch, they can immediately feed off the radiation. As parasites, the females of the M.U.T.O. parasitic species lays their eggs inside the radioactive carcasses of the larger Godzilla species in order to reproduce.

Physical Strength and Durability

Both the male and female M.U.T.O.s possess immense physical strength and durability. The male M.U.T.O. was strong enough to dredge up a Russian Typhoon-class sub from the depths of the ocean and pull it dozens of miles inland on the island of Hawaii; the fact that he could perform such a feat, and later attack a ship in San Francisco Bay to collect a nuclear warhead, implies that he posses some swimming capabilities. The female was able to claw herself out of Mount Yucca, as well as being able to destroy buildings with ease. She was also able toss Godzilla himself around a few times, despite his own immense size and weight. Both M.U.T.O.s were durable enough to take barrages of both small and large arms fire without any damage. However, their strength and durability appears to be inferior to Godzilla's.

Video Games

Godzilla: Smash3

M.U.T.O. appears in Godzilla: Smash3 as an enemy that Godzilla fights against.

Comics and Books

Skull Island: The Birth of Kong

A photograph of the male M.U.T.O. inside its chrysalis taped to a map in Houston Brooks' office in the first issue of Skull Island: The Birth of Kong

While the male M.U.T.O. was still developing inside of its chrysalis in Janjira in 2012, a photograph taken of it inside the chrysalis was taped to a map in Houston Brooks' office, alongside photos of the 1954 Castle Bravo detonation as well as an image of a moth-like creature.


Main article: M.U.T.O./Gallery.


The M.U.T.O.'s roar first appeared as an MP3 file hidden in the official Godzilla site.[11] The roar can be heard when the official site loads up, though it is faint due to Godzilla's roar being much louder than the M.U.T.O.s' roar.

The M.U.T.O.s have very unique roars, many of which are deep and blaring with occasional crackles and snapping noises. At a few points, the M.U.T.O.s make trumpet-like cries and groans similar to creaking doors or Geiger counters. The male and female vocalizations are slightly different; the male emits higher-pitched calls and shrieks, while the female's roars are deeper.

The male M.U.T.O.'s roars
The female M.U.T.O.'s roars

In Other Languages

  • Russian: Г.Н.Н.У.С. (Гигантское Неопознанное Наземное Уникальное Существо)
  • Serbian: M.Н.З.O. (Масивни Неидентификовани Земаљски Oрганизам) / M.N.Z.O. (Masivni Neidentifikovani Zemaljski Organizam)
  • Croatian and Bosnian: M.N.Z.O. (Masivni Neidentifikovani Zemaljski Organizam)



This is a list of references for M.U.T.O.. These citations are used to identify the reliable sources on which this article is based. These references appear inside articles in the form of superscript numbers, which look like this: [1]

  1. 1.0 1.1 MONARCH Declassified: The Godzilla Revelation. Godzilla DVD/Blu-Ray Special Features.
  2. Godzilla Revelation - Philippines
  3. 3.0 3.1 "GODZILLA" by D. Callaham. Revisions by David S. Goyer. Current Revisions by Max Borenstein. 2012-06-20.
  4. Lanz, Micheal. (May 15, 2014) 'Godzilla' 2014: How VFX pioneer Jim Rygiel remade Japan's most famous monster. Take Two.
  5. 5.0 5.1 Seymour, Mike. (July 2014) I Am Become Death. Cinefex (iPad edition), 138
  6. Concept art for a 4-winged Hokmuto.
  7. 7.0 7.1 Winged Muto 01. Matt Allsopp Portfolio
  8. (June 4, 2014) MUTO-Bridge. deviantART
  9. (June 30, 2014) Male Muto. deviantART.
  10. Godzilla Movie CLIP MUTO (2014) - David Strathairn, Gareth Edwards Movie HD
  11. intro.mp3
  12. Mark Cotta Vaz. Godzilla: The Art of Destruction. Insight Editions. p. 82. ISBN: 978-1783292806.

Era Icon - MonsterVerse.png
Era Icon - MUTO.png
Eight-Legged (Female) M.U.T.O.
Winged (Male) M.U.T.O.


Showing 18 comments. Remember to follow the civility guidelines when commenting.

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2 months ago
Score 0
I think Biollante is a completely original monster

Astounding Beyond Belief

2 months ago
Score 1
"More than just the same family. They are both made from the same cells. They're identical, the same thing. Not brother and sister; they're both the same creature."


5 months ago
Score 0
I wonder if these two will get a proper species name in Godzilla: King of the Monsters


3 months ago
Score 0
Maybe not.


6 months ago
Score 1
I don't know how people keep mistaking this couple for Clover! Their design might be a bit generic, but I still kinda like them. They did hog the screen time in Godzilla 2014, though.


6 months ago
Score 0
I still don't like them


one month ago
Score 0
it's my favorite kaiju


6 months ago
Score 1
Why do people still complain about M.U.T.O.s lookin like Clover while they are completely different?..


8 months ago
Score 0
Why do so many of the Muto toys have red markings on them? They look cool but I'm pretty sure the Mutos in the film do not have them.


8 months ago
Score 0
Only the male had bits of red, but that was when using his EMP attacks.


13 months ago
Score 0

The Wikipedia page of MUTOs say that the last "original opponent" in the Godzilla franchise is Orga, while this page say Titanosaurus.

-Isn't Orga is just an clone of Godzilla, and not an original opponent?


13 months ago
Score 0
Well, Orga is not a clone of Godzilla. It is a fully separate monster. As the movie progresses he acquires Godzilla DNA and stuff and becomes more like Godzilla. So Orga could technically be the last original kaiju.


13 months ago
Score 0

Hey, Destoroyah was CREATED by the Oxygen Destroyer, but He is not: The Oxygen Destroyer A clone of the oxygen destroyer

Based on any other monster appearing

The King of the Monsters

13 months ago
Score 0
The characters in Godzilla vs. Destoroyah specifically call Destoroyah "the living Oxygen Destroyer" several times. Destoroyah is essentially treated as the incarnation of the Oxygen Destroyer.


3 months ago
Score 0

Any creature that has some tie to Godzilla is hardly original. A creature with its own unique origins is original because they don't relate to Godzilla in any way.

The M.U.T.O.s of the film aren't exactly related to Godzilla, but evolved to become parasitic to his species, similar to how the Skull-Crawlers are a carnivorous parasite to other creatures because of their insatiable appetites.


15 months ago
Score 0
As Kong: Skull Island is seemingly set in the past (it's advertising itself as Kong's origin story), then it'd be cool if these guys made a brief cameo. I wouldn't want them as the main villains because that would just be stupid, but it'd be cool if the Winged Muto fought Kong and he killed it, showing off his power and how he could be capable in a fight against Godzilla.

Hyper Godzilla

16 months ago
Score 0
First Comment!


15 months ago
Score 0