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The Symbiotes are a race of parasitic alien beings featured in the Marvel Comics. They are goo-like creatures that attach themselves to a living host and feed off the emotion they make to grow stronger.

Although began as benevolent species which believed in helping others, which they attempted to do by creating heroes through the process of bonding to the morally and physically ideal, hosts afflicted with chemical imbalances, emotional negativity (hate, greed, pride, stress, etc.) or cultural malignancy could corrupt Symbiotes, turning them into destructive parasites. Over time corrupted Symbiotes became more widespread than their benevolent counterparts, establishing a space faring culture dedicated to infecting and overtaking planets.


The first appearance of the symbiote was in Marvel's Secret Wars comic line, in which the alien suit bonded to Spider-Man, granting him greater power. After awhile, Spider-Man learned that the suit was alive and taking over his life, so he had it removed a few times, as it kept coming back to him.

Symbiote movie

The alien symbiote as it appears in Spider-Man 3.

Eventually the symbiote found another host: frustrated, angry newspaper reporter Eddie Brock. The symbiote bonded with him, and together they became the super-villain known as Venom, who had the same powers as Spider-Man, but stronger. Because the symbiote and Spider-Man were allies for so long, Spider-Man spider sense never registers Venom as a threat, making him even more dangerous. The symbiote-infected human always referred to themselves in the plural first person, saying "We" instead of "I".

Symbiote Eddie Brock

Eddie Brock bonding with the symbiote to become Venom.

Once, when Brock was separated from the symbiote and sent to prison, it returned and broke him free, making them Venom again. Brock inmate, the psychotic serial killer Cletus Cassidy, involuntarily bonded with some of the symbiote's spawn, and they became one of Spider-Man's most dangerous foes ever: Carnage. Carnage was even more powerful than Spider-Man and Venom put together, showing that the symbiote sapped power from each host and gave it to its offspring.

The symbiote's two main weaknesses are sound vibrations, and extreme heat.

Other characters in the Marvel universe have become infected with the symbiote as well, including Deadpool, Scorpion, and Wolverine.

It has recently been revealed that the Venom Symbiote was in fact a diseased member of a race known as the Klyntar. After returning to its homeworld during his time with the Guardians of the Galaxy, part of a 'hero exchange program' while serving with the Avengers, Eugene "Flash" Thompson has now had the symbiote 'cured', unlocking new abilities and knowledge.


Spider-Man Villains

Absorbing Man | Agony | A.I.M. | Alistair Smythe | Annihilus | Answer | Arcade | Awesome Android | Basilisk | Beetle | Beyonder | Black Cat | Black Tom Cassidy | Blastaar | Blob | Bombshell | Boomerang | Brood | Brothers Grimm | Burglar | Bullseye | Bushwacker | Calypso | Carnage | Carrion | Chameleon | Chance | Circus of Crime | Cobra | Constrictor | Crime Master | Crossbones | Dark Avengers | Demogoblin | Diablo | Doctor Doom | Doctor Faustus | Doctor Octopus | Doppleganger | Dormammu | Dragon Man | Electro | Enforcers | Equinox | Firebrand | Firelord | Foolkiller | Frightful Four | Ghost | Gog | Goliath | Graviton | Green Goblin | Green Goblin II | Grey Gargoyle | Grey Goblin | Grizzly | Hammerhead | Hand | Hazmat | High Evolutionary | Hitman | Hobgoblin | Hulk | Human Fly | HYDRA | Hydro-Man | Jackal | Jack O' Lantern | Jigsaw | Johnny Ohm | Jonas Harrow | Juggernaut | Justin Hammer | Kaine | Kangaroo | Killer Shrike | Kingpin | Kraven the Hunter | Lady Deathstrike | Life Foundation | Lightmaster | Living Brain | Lizard | Loki | Madame Viper | Mad Thinker | Magneto | Mandarin | Man-Wolf | Menace | Mephisto | Mesmero | Mister Fear | Mister Hyde | Mister Negative | Mojo | Molten Man | Morbius | Morlun | Moses Magnum | Mysterio | Nekra | Nightmare | Niles Van Roekel | Nitro | Onslaught | Overdrive | Owl | Psycho-Man | Puma | Punisher | Ramrod | Red Ghost | Red Skull | Rhino | Rhino II | Richard Fisk | Ringer | Riot | Roxxon | Sabretooth | Sandman | Sauron | Scarecrow | Scorcher | Scorpia | Scorpion | Scream | Sebastian Shaw | Secret Empire | Sentinels | Shocker | Shriek | Silver Sable | Sinister Six | Skrulls | Speed Demon | Spidercide | Spider-Slayers | Spot | Stilt-Man | Super-Apes | Swarm | Tarantula | Taskmaster | Terminus | Thunderball | Thunderbolts | Tinkerer | Titania | Titanium Man | Tombstone | Trapster | Tyrannus | ULTIMATUM | Venom | Vermin | Vulture | Walrus | White Rabbit | Will-O'-The-Wisp | Wizard | Worthy | Zodiac |

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