Parasytes

Parasytes are an alien species native to an unknown planet. They fell to earth in pods that look like spiked green tennis balls or a kind of virus. Their goal is to eat people and populate the planet with members of their kind. Typically they are bad and want to dominate the human race. However, as shown with Migi, and Uda’s Parasyte, Jaw, Parasytes can fail their mission in taking over the host completely via the brain, and if they do there is a good chance they will be good and become allies and even friends to people. Shinichi Izumi and Migi work together to help slay the bad ones and hope for more good ones. Migi took over Shinichi’s right arm hence her name thanks to Shinichi’s thinking in using his headphones to wrap around his arm tightly after she dug in. Jaw took over Uda’s Jaw, Neck and Chest Area after he fell into deep water off a cliff and had no choice or Uda would drown, hence Jaw’s death. However, a Parasyte does not have to fail to be good. As shown with Reiko Tamura, something can happen into their life to change them. Reiko gave birth and raised a human son. However it still took her awhile after she had him as she planned on “experimenting” on him and then eat him, angering Shinichi. This is why even now Reiko is still considered a “Psycho Mom”. Parasytes are shapeshifters who take on the appearances of anything, mainly people. They can still remain bad if they fail like what happened to the dog who failed his mission as he was meant to overtake a human. Parasytes can produce their own body-made blades when in attack mode in their self form, and can produce tentacles, split open body parts such as the head, and stretch places. they are on of the few alien species to not come in a UFO. One of the first aliens to do so was the Body Snatchers from Invasion of the Body Snatchers who came in plant-like pods that attack you when you’re asleep.

Parasytes Cannot go from one gender to another after they take over the host. If they are a Man, they must stick to all men hosts if something happens to their current body and the same goes if they take over a Woman, sticking with taking over Women. If they go from a Woman to a Man or vice versa, their bodies will fail on them, they will not be able to control themselves and they will have no choice but to find another man or woman host. As Shown with the Evil Parayste who killed Shinichi’s mother, who was temporarily in a male body after the previous host body died in a car accident (due to her stupidity over fiddling and playing with seat belts).

they are one of the only alien species that require certain things like this.

Parasytes cannot really have other Parasyte children as like Reiko, they have humans. It is unknown still why this is, and what more so is that why the humans from their Parasyte Parent or Parents don't have any Parasyte DNA.

Each Parasyte is different. Some are Crazy and don’t care what they’re doing or are out of their mind like Reiko’s partner and her baby’s dad, Mr. A. Some are completely smart like Reiko and may be cold and calculative. Some are a humorous comic relief like Jaw. and some are evil as ever and know what they are doing like the ultimate Parasyte, Goto (created by Reiko, who said he was invincible but fragile for a reason a he was hard to kill but yet he still could and the virus induced metal bar inserted in bullet wounds by Shinichi proved it).

Parasytes can have more than one of them in one host body, like Goto, who had 5 (hence his name, a meaning of 5.)

The Thing (by John Carpenter) is the most similar species to the Parasytes and was even the main inspiration for them.

However, several known differences between the two species are:

The Thing does not have any body built-in blades.

They cannot really fail their mission, but the unofficial case was with the one that infected George Bennings.

They Came in UFOs like most of all Alien Species, not Pods and other objects.

Gender does not matter in the scheme of going from one body to another.

And lastly, there are no reported good members of its kind.

Parasytes can be distinguished from other types of Parasites including earth ones because their name is spelt with a Y. it has been shown that Some People can sense something belonging to Parasytes like the late Kana and Serial Killer Uragami.

each Parasyte can sense each other and anything they might be doing, hence why Migi tells Shinichi or anyone one of her kind is coming to prepare for fighting or running.

the kind, notably Migi, appears in the multiversal crossover special Molly: Defenders of the Publicverse. Migi is apart of the main group, the Public Defenders.