"If the Mimic gives chase, RUN."
- First off, there's the sudden rise of Crawl, red meaty roots that spawn creatures which hunt flesh for food. While some are not bad, being only carrion eaters, most are active predators.
- The Mimics. Large, humanoid creatures with dead eyes and grotesque Slasher Smiles. They specifically hunt humans to eat, and prefer their prey cornered and alone.
- In the middle of the species description, there is found footage where a woman hides in cubbyhole in her house, only to see a red hand slowly open it, an eye peer at her, then she gets attacked. After finishing the description of the Mimic, the documentary returns to the found footage video, and the woman's flashlight on the floor now illuminates her blood being spattered on the wall as there is squishy crunching offscreen.
- Mimics gain intelligence and skill based on how many humans they've consumed, so a mimic in a relatively high-populated area learns fast.
- Then there's their ability to blend in via wearing human clothing and growing skin, hair etc. Imagine you're sleeping, and there's a knock at the door. You open it, and it's a man… but his facial features are off, he has bulging eyes and an unnaturally wide smile. He then bites your head off.
- The "Mimic Defense Tape" adds more evidence of how horrible they are. The recording shows a girl finding a Mimic next to the car feeding on her friend, then it chases after her. She runs into her house to hide, but it's no use anyways because it breaks down the door and drags her away.
- The Elder Mimics are a form of Mimic that develops after a Mimic consumes an immense amount of human prey. They look even more inhuman than their previous forms, unlike the Mimics that evolve to look more like humans with distorted facial features. These Mimics' skins will darken to the point that they can easily hide in the dark, with their faces turning white or pale pink, making them the only part of the mimic visible. These Mimics are even stronger and faster than normal Mimics and their skin is far tougher. For context, an normal Mimic can only be temporarily incapacitated, not killed, by gunshots to the leg or head. Barring that, you can't truly fight them. An Elder Mimic? Even high-powered firearms won't harm them. Your only option is to run and try to reach more people and hope it doesn't catch you before then.
- The Season 2 trailer gives us a very quick closeup of a mimic, this time in the middle of chowing down on some hapless victim. While earlier mimics were uncanny enough, this one looks positively ghoulish, looking more like a demonic meaty skull with huge soulless eyes than the just exaggerated features we saw before.
- The Hosts. The Hosts are partially humanoid creatures that will plant themselves in an area, usually a forested one, and exude spores. If a human inhales these spores they will, after a period of time, walk themselves to the host, then kneel before them and passively allow the Host to rip out their organs for consumption.
- The Host, disturbingly enough, isn't too far from reality as a concept either as, as "Message" shows, the Host functions similarly to the Cordyceps fungus, which hijacks the neurological function of living organisms like insects by filling them with enough spores to compel the victims to walk themselves to their own deaths. Thankfully, Hosts are extremly rare and have only been recorded in North America, unfortunately Hosts have also been recorded to be able to uproot themselves and move to a different region if they lack food in their current one. It's only a matter of time before they spread outward. Hosts seem to only consume human flesh, much like the Mimics.
- Scarily enough, there is a company called Nutrire Co. in-universe that appears to be using Host spores as part of their flavour enhancer spice. For what exact reason is unknown, but its possible it might be to feed the Hosts more people. Nutrire is implied very heavily to be part of some sort of cult that worships Carnis creatures.
- Reinforced by a bit of Bilingual Bonus: Nutrire in Latin means "to feed". It's pretty ambiguous who the company is actually feeding...
- "Species Anomaly Report" shows how horrific the Harvesters can be by depicting an incident where a mother and child are hiking, only for one of them to fall prey to the Harvester's tendrils, accompanied by the child giving an absolutely bloodcurdling scream and the images implying the child is bleeding out, if not being devoured entirely. The latter of which is all but confirmed when the mother comes to find her child's body in horror and becomes prey to the Harvester too.
- Worse yet, this gruesome incident implies that that the documentary was wrong about the Harvesters. Originally, scientists believed the Harvesters only dragged their prey underground to be liquified after the prey was dead. Instead, it's heavily implied by the mother's screams as she was attacked and devoured that the Harvester drags them underground and liquefies them while they are still alive, still able to struggle and feel pain, and unable to do anything to save themselves.
- The attack on the mother and her son is also juxtaposed with several reports being shown of the Harvester population and how they seem to be moving to surround a fictional island located off in Hudson Bay, Canada. Presumably this is where the Monoliths are located. It's very possible these two died horrible gruesome deaths simply because they had the bad luck to wander within range of a Harvester that was never seen in the area before because it moved there very recently. They had no warning until it was far too late. How many more people could have died horrifically just because they accidentally came across a Harvester that wasn't there before?
- Oh, and don't think anyone rescued from a Harvester is going to be okay either. In their debut, it's stated that harvester venom has a 100% fatality rate and no cure has been found. If you get stung by one, You Are Already Dead even if you don't get eaten.
- Ever wanted to see a giant meat creature with trunks for legs? Well meet the Monoliths. Giant humanoid creatures that are even more durable than the Mimics and do...nothing, apparently, save for the one time they killed a research team. They're contained, but with their size and durability, what would happen if they do escape one day?
- We have only seen the Monoliths show active aggression once, when the military tried to fight them. It's brief, but it's readily apparent that between their sheer size and the fact that they can fire EMPs to fry electronic equipment that they are something... different from the other Carnis creatures. They aren't acting like predators or scavengers in an ecosystem; instead, they're something much more bizarre and unknown.
- As the series progresses, it becomes apparent that as dangerous as Vita Carnis can be, they only ever caused so much trouble because humans deliberately introduced them to the world, even going so far as to sell Host spores in a food product as mentioned above. A Government Conspiracy was established that kept people from questioning where the creatures came from only until victims were being exposed, and the group responsible for getting the Vita Carnis off their island never received any retaliation until the end of the first season.
