Chimarion - A speculative evolution communty project about chimeras

I had to move this part of my previous post down here due to character limit. Good news is that except for three of these, all the other submissions have been completed, and those that aren’t should be completed shortly

More Chimarion Submissions
Unknown (due to confusing mix)


Chimeric Parts: Japanese Blood Grass + Sea Sapphire + Magnificent Anemone + Poison Dart Frog

Description: Starting their life as tiny little semiaquatic scuttling organisms, barely two inches long, with many scuttling legs and a powerful fin tail, these creatures are slightly armored and hard to see unless hit by light in just the right way, where they stand out like a rainbow beacon. They carefully scuttle between Lureteppe, sucking up detritus and feeding off of Tareslange leaves until they have stored enough energy to begin their transformation into adult Fantomblads

Those few that make it this far find a place to settle down, whether in the swampy caves covered only in a small layer of water or the busy waters of the aquatic caves, and here they slowly grow into a deadly sessile predator. They passively gain a small amount of energy from symbiotic algae all over their bodies, but most of their sustenance comes from their own natural photosynthesis and occasionally from them using their razor sharp blades of nigh-invisible death to slice into prey. Their slow moving tentacles are almost invisible unless hit at a very particular angle, and their constant, slow movement gives them an ethereal look of a handful of minor reflections that lures in smaller prey items to their doom, poisoning and slashing at them as they are hypnotized by the plants beauty

In the event that something does try to eat them, they are not only incredibly sharp but also incredibly tough and poisonous, making it the rare beast that can try to eat them, and an even rarer one which can succeed and walk away unscathed.

Diet: Herbivore and Scavenger as larvae, Omnivore and Small Scale Producer as adult

Size: Larva around 2 inches long, Individual plants are about 3 feet wide with 2 foot tall blade-tentacle-leaves

Environment: Hydrothermal Caves (Above and Below Water)

Other: Stinging Blade Tentacles, almost invisible unless light hits just right (then many sparkling colors), deadly poisonous as adults, incredibly sharp, sessile and slow moving, symbiotic photosynthetic algae, can crawl and is amphibious as larvae



Chimeric Parts: Satanic Leaf Tailed Gecko + Devil’s Fingers + Praying Mantis + Trapdoor Spider

Description: Fryktelig are the small scavengers of this world, forming huge colonies similar to ants and working together to be a formidable force to be reckoned with.

Two stages of this life form exist. The first is a fungal stage, which forms as a large white bubble that red, finger like protrusions emerge from when they mature and take root. This form is a saprotroph, feeding off of dead or dying plant and animal matter. It can connect its roots with nearby members of its species, linking together to share information and resources. It is rare, but with enough time, if there is a scarcity of food or danger to its being, this first stage can develop long, mantis like legs and then get up and walk away to a new location.

Occasionally, the spore eggs of the second stage can be found lining the arms, or fingers, of the first stage, where they then fall off or are collected by the second stage. In the second stage, which hatches out of the spore eggs of the first stage, they come into the world looking like small, lizard like creatures with the hind feet of a gecko, small arthropodian limbs lining their abdomen, and two large, raptorial forelimbs that they use for striking and walking around by planting the sharp, scythe like end in the ground, similar to how a gorilla walks on its knuckles.

This second stage also is covered in a rock or plant like camouflage, with a thick mat of small devils fingers lining its back like a spiky mane or row of spines. They form sprawling hives near the base of the adult stages, hidden beneath earthen trapdoors, and can share information and food resources with them in necessary. Injured second stages are occasionally wrapped in silk and mobile, subsurface hyphae in order to accelerate their healing process.

The second stage is significantly more active than the first stage, actively going out to hunt or scavenge for food in a similar way to ants. If the first stage Fryktelig are ever in danger from some sort of grazing herbivore, these creatures will also swarm this being, and try their belgiumedest to take it down. If an event happens where the first stage needs to move, hives will often move with them, and may even end up joining with another fungal grove and hive in the area, as colonies don’t make distinctions between one another and will actually actively help one another.

When the second stage dies, it’s body acts as fertilizer for the spores stored deep inside it, objects made early in life after maturing as a second stage through mating and the joining of spores from the fungal parents of each second stage Fryktelig. This also makes every Fryktelig hermaphroditic, so that every second stage sprouts at least one first stage upon death.

Diet: Omnivore / Saprotroph

Size: 8 inches long second stage, first stage constantly grows based on food availability.

Environment: Any terrestrial environment excluding polar areas, though they are much more common the warmer the environment, being most common in hot deserts and mesas.

Other: Two stages, Red finger or tentacle like fungal arms, raptorial forelegs, small arthropodian limbs, reptilian hind legs, plant or rock like skin camouflage, trapdoor burrows, giant nests/hives, silk production, fungal mane, hermaphrodites



Chimeric Parts: Alvinocardid Shrimp + Tasseled Wobbegong + Ghost Flower + Cave Caiman

Description: A large, crocodilian chimera, this beast lays in wait all over the floors the hydrothermal caves, carpeting the floors of the swamp caves as their predominant ‘plant’ and being not uncommon undergrowth in cave-dwelling Tareslange forests. They are the predominant light in those swampy areas, their backs covered in a thick carpet of glowing ghost plants.

Spending most of their lives in the same location after hatching from their eggs and finding a spot to lay down, they spend most of their time passively feeding off of the organic matter produced by their microfungal symbionts. They’ll lazily snap or lunge at anything that registers to their heat sense or brushes by their antennae, but only will ever do so half heartedly and don’t often give chase, only ever really moving or shifting around to uproot a misbehaving Fantomblad or to shove other Lureteppe aside in order to have room to grow.

Mating predominantly occurs between neighbors, with young wandering far enough away that it usually doesn’t become a problem for future generations. Due to having no real predators, the Lureteppe lives a mostly carefree life, vibing the day away.

Diet: Producer, Detrivore, Scavenger, Carnivore

Size: 6 feet long as adult, no real maximum size (grow to fit available space)

Environment: Hydrothermal Caves (above and below water)

Other: Symbiosis with microfungal chemosynthesizers in their gills, glowing carpet of ghost plants on back, flora-like camouflage and patterning all across skin surface, bright red eyes, Heat Vision, perfect stillness, gills and lungs, powerful swimming tail good for lunging



Chimeric Parts: Panellus Stipticus (Bright Green Glowing Shelf Fungus) + Giant Kelp + Dragon Snake + Leafy Sea Dragon

Description: Long and sinuous when young, juvenile Tareslange are relatively active ambush and pursuit predators, chasing down small prey throughout forest of their adult counterparts. All across their bodies, fins of leaflike protrusions grow, and sometimes juveniles will even curl up on a leaf of an adult to ‘sun’ themselves and perform some minor photosynthesis.

When approaching adulthood, Tareslange will go and find another near-adult to mate with, their hermaphroditic nature allowing them both to begin to carry the seed-eggs of the other.

They then go off on their own separate journeys, searching for an area with plenty of space and little competition for them to take root. Once they find an area that works for them, they bite down on the soil and their metamorphosis begins. Their jaws slowly transform into a large, root like system, and their body elongates dramatically, their leaf like protrusions increasing in size and becoming proper, glowing green leaves. Shelves of bright green fungus like material also sprout up and down their scaly stems like tiny little shelves, and small bubbles form on short little stems all up and down the main trunk of this plant and underneath its giant leaves.

This now massive pseudo plant can live for a very, very long time, steadily growing with each passing year. It gains its energy through photosynthesis, using the other plants as its light sources in the darkness of the deep sea. However, due to this not being a video game with an infinite energy glitch, it’s also a saprotroph, feeding off of the detritus and dead bodies of past organisms.

Periodically, around once every two or three years or so, some of the bubbles will detach from the main stem and increase in weight, dropping among the pseudo branches of the plant and the aquatic leaf litter. These will eventually hatch into new Tareslange, who repeat the cycle all over again, endlessly increasing the spread of the deep sea glowing forests.

Diet: Carnivore (Fantomblad Larvae and other small creatures) as juvenile, producer and saprotroph as adult

Size: 2 feet long as juvenile, up to 215 feet long as adult

Environment: Hydrothermal Caves (Underwater), Deep Ocean relatively near caves

Other: Black scaled body/stem, leaf-like glowing protrusions as juvenile as lure and camouflage, other leaf like camouflage, can unhinge jaw as juvenile, huge glowing leaves as adult with bubble pods (also eggs), jaw-roots as adult

possessive slime

name: possessive slime

#1: Dictyostelium discoideum
a: cell aggregation and cooperation

#2: chaos carolinensis
a: cell size
b: cell structure
c: phagocytosis

#3: slugs in general
a: chlorocruorin
b: hemoglobin
c: hemocyanin
d: axons
e: endosymbiotic neurons
f: heat tolerance

#4: chordyceps
a: animal infestation
b: brain control
c: immune system befuddling
d: hyphae

the possessive slime is a large aggregation of cells, consisting of cells from 2mm to 8 mm in diameter, able to grow up to 12 inches in diameter, and 6 inches tall. like a few other large amoebae on this planet, these amoebae have entered a symbiotic relationship with the sea onyx in order to have more oxygen available throughout its cells. when possessing an animal they fuse all their cells into one, moving their endosymbionts other than the neurons and mitochondria to the outside cells, and spreading all non-photosynthesizing endosymbionts evenly throughout the cytoplasm, before finding their way to mucous membranes, where they split the cytoplasm in contact with it into a bunch of mononucleic cells, leaving all the macronuclei in cells that force their way under the skin, leaving some of their cytoplasm above the dermis to allow the sea onyxes to carry out photosynthesis.

after the cells containing macronuclei are below the dermis, all slime cells that come into contact with it fuse with it, constructing a mycelial network that reaches everywhere in the animal’s body, and severs the spinal chord from the animal’s brain at the connections between the dendrites and the rest of the brain, connecting their own axons to the dendrites of the spinal chord and reconnecting the neurons that control stuff like breathing, heartbeat, and internal organ function.

inside a bone having animal, possessive slimes ditch their oxygen carrying molecules, electing to instead put them in vacuoles made to be detected as the host body’s own blood cells by the immune system, and put them in the blood. on the side of the slime cells left in the blood, they mask themselves with the antigens on the surface of white blood cells and regularly cross mucous membranes, allowing them to feast on the plaque of their hosts to extend its lifespan by making its teeth stay healthy, and to feast on all other infestations within their host, making sure it doesn’t die of infection. the mycelia masks itself with the antigens on the cells around it.

despite being made to take over bodies, some possessive slimes prefer to sit back and let their host do the moving, controlling the cells that make up the portion of slime in the blood and bodily fluids to make sure they don’t cause adverse effects, and spreading a portion of their protoplasm to any animal their host gets cut by.

despite having a chain link fence of a nervous system, possessive slimes can actually be quite intelligent due to having all their cells do at least a bit of thinking. they typically reach their highest possible intelligence when possessing a host, as they use both their own nervous system, which grows to twice the normal density when in a host, and the host’s brain.

outside of a host possessive slimes usually fuse and split their cells at regular intervals to ensure none of them get a lack of any essential gas or nutrient, keeping a few small, constant connections to exchange their red, blue, and green blood compounds, and new, useful genes. possessive slimes with no host regularly eat plants, animals, protists, and fungal fruiting bodies smaller than them as long as they aren’t poisonous, allowing them to keep a higher metabolic activity that allows them to keep their shape with little structural support.


happy to say that I just updated the last organism tab on my list, so I am officially done submitting new pioneer organisms for Chimarion

There is absolutely no need for me to make any more lol


Many thanks to everyone who added our chimeras.
The amount of chimeras that we managed to reach rose to 143 different chimeras for the start of the project!

I will update very soon the first part: the first 5 million years!

how will it go?
I have no idea, I’ll say after a good night’s sleep.


Yo doom, you forgot to add two of my creatures from here

The Stjerneprins and the Ungtarbeid

Just thought I’d let you know for whenever you wake up

Edit: Also Gåpest is listed as 200 meters tall in the website when it should be 200 feet, that might be my bad

Edit 2: Piceamoe is 77 meters?!?!? Dang

Edit 3: The huge champagne has an absolutely massive 50 meter root system




You will be surprised to find out that most mushrooms of the mycelia type are very long, with an average range of 70 m up to hundreds of meters. The record as far as I know is something like 2700 km (also known as the heaviest creature in the world)


Someone from the SE Forums by the name of Arrowhawk made these, figured I’d share em here so y’all who are only on the Thrive Forums can see em.

I think Doom said they’re official, not 100% sure on that though


yes, they are official as I see its now/


Early Neovestigia: 0 AGA → 5,000,000 AGA

(Map made by Arrowhawk)

The Great Abandonment is also known as the starting point of the first period: Neovestigia (first steps) is a period that can only be described in a few words: violent, chaotic and hopeful.

The abandonment was sudden, as if they decided to simply fold everything and leave the planet to its own devices and everyone left behind, a cruel fate awaits the abandoned. The true number of those left is unknown, but probably for the better, it is better not to know how many souls were killed before their time only after they were created for… ‘fun’.
A joke to those who try to be a god, creatures that shouldn’t exist, were simply thrown like fresh garbage into the incinerator, remained in what they were born into, and those who take care of them, maybe it’s also better that we don’t know what they went through, simply abandoned a job that cost more than it should, but why?

Force? Of money? show off?

What was not there, is already in the past, a fresh sin that grows old with each passing day. Those who did stay, only luck could do its thing.
A few weeks after the place was abandoned, the sources of energy that established the entire process, maintenance and audit already started to show wear. Those who were imprisoned there, ‘abominations’, have already begun to be at the eternal mercy of themselves.
The first to escape from this prison are the mushrooms and plants, which, compared to the others, were more laxly controlled, and plants are known to spread quickly. Without anything to stifle them in the first steps, they spread like wildfire throughout the world from every prison they were in, but surprisingly only a few managed to survive the initiation phase.

luck? Accurate planning in advance?

The refugees who arrived together with the humans, all the bacteria and eukaryotes and viruses were already there when the plants began to take root on the planet without a complex creature except themselves, they already had a role to play. No one knows how long this project really lasted before the great abandonment, but it probably played a part in the luck of the plants and fungi.

Next in line are the protists, and it’s unbelievable how strange they are: the logic behind their formation is probably just for the laughs of someone who knows what they are. pathetic.
But still, few as they are, their resourcefulness has been able to prove itself. Especially the fact that they do not reproduce sexually like the other groups probably contributed to their success.

And last, and the most painful of all, the chimeric animal creatures. May the Chimariom world forgive them for being created, they are the most popular in the genius of their creation. People prefer them over the other groups. And they are the ones who suffered the hardest. A number behind their formation is probably better off sinking into the sands of time while all they wanted to do was survive the horror they went through.
Many were lost, still locked up in prison where they lived all their lives. Others managed to escape by luck or wits, but what awaited them there was just more torture for their existence. They need to survive, but probably among them, even those who managed to survive, a very important element was missing for many - fertility.
Plants and fungi were able to reproduce by asexual or self reproduction, but animals, almost all reproduce sexually. If even the second is missing, they are also doomed to cruel history.

But life manages to pave the way, and those who were blessed with fertility and managed to reproduce, and give birth to fertile offspring themselves, their offspring will already be born where their parents managed to escape to, and with it pass the spark of life on, and they depend on survival and to return the track a second time, like on Earth.

But here from this point, it raises a big question: a created chimera that managed to reproduce and produce a fertile offspring, is it still considered a chimera or a species in its own right?

This is food for thought for you to think about.

After the inferno they went through for a long time, the chimeras came to an uninhabited world, and they called it…

Home. away from what from the brutal birth of the essence of their existence. But for life as always - the test of time will test them if they really deserve to exist or fade away with their other experiments, which tried to play God.

The planet during this period itself is slowly cooling since the Great Abandonment, and the ice caps have spread more towards the center and caused a drop in the water level and a slight increase in precipitation.

Only time will tell who will survive and who will perish.

doomlightning - Pen name of a researcher in prehistoric ecology

I think that now, it is now possible to give evolution to the “pioneers” who managed to survive the great abandonment.

How do you do this? You choose from the list of pioneers here:

And from there you think about how to develop it in this changing environment, and submit.
After two months, I will close the submission and the grill who among those that remain, will be eliminated and from there we will move on to the next period.

During the submission process, I will write stories and try to draw pictures about the current period, give it volume and life, like with the rocky reef. You are welcome to join and add a story or information that can happen during this period.

I hope it will be interesting and fruitful. After all, this is a community project.

I can say my swing to everyone who has contributed so far.
We have almost 150 pioneer chimeras! This is not a small amount for this period!

I would currently limit them to waiting a bit before you actually start serving. Something like… a week and a bit

Give others a little edge in the idea.

After all, you contributed more than 60% of the chimeras XD


So we can write short stories about the organisms too?


I see, favoritism. Doom obviously just likes them better than us /j

lol, but seriously we didn’t do that many more. Doom by himself did about 17.5% (26) of the pioneers, the SEF forums did about 40% (59) of the pioneers, and we did about 42.5% (63) of the pioneers. (Counting doom separately as he’s the GM and so not really exclusively in either group)

Not that it matters, ofc. Just thought it was interesting.

Anyway, what ideas do people got for when Doom says we are good to submit evolutions?


I think i count myslef as part of here and there.
That also mean that i am right that more then 60% are from thrive xd

The ferowrismn are jist becuse there its the first one, and also, here its litterly a horse power and we all know that


What license is used for this project?

You mean the license needed to have a website, right?

License of the pure creature ideas, lore, etc. Unless there is none.

Edit: I had idea of some story for this project but sometimes I’m kinda paranoid when it comes to copyright…

It shouldn’t be like that. It’s technically a free project (why is there credit in the project?)

1 Like

I think they’re more worried about someone just coming in and saying they made everything, making their own website and removing any sort of credits, etc

But that’s why intellectual property rights is a thing, no? Not super experienced in copyrights but that’s kinda why those sort of laws exist

Also doom we good to submit now? You asked us to refrain so I’m just checking

1 Like

I was actually more worried that by making works inherited (or based) upon someone else’s work without their direct permission I would violate something, but It can be just me being

Doesn’t matter anyway cus Doom did give direct permission to make stories when he posted the new round

But ye I understand what ur sayin


I tried to draw my creature but I didn’t do it well :eyes:

Edit: I edited newborn height to be smaller for my first creature:

Edit 2: I wanted to post a tale for this project but I can’t double post, could someone post something? :slight_smile:

post 100 in this thread!

evolved from black mouse amoeba
furred water rat

1: webbed feet
2: book lungs adapted to breathing water
3: adaptation of less light-inclined endosymbiotic sea onyxes into nitrogen fixing endosymbionts
4: increased size
5: decreased neuron size and increased neuron count
6: specialization of middle hands into flippers for constant motion when needed
7: increased exoskeleton thickness
8: nitrogen vacuole for buoyancy
9: increased fat stores

description: the furred water rat is a larger and smarter, semiaquatic version of its predecessor, with the only reason it isn’t fully aquatic being the young not being developed enough to protect underwater at birth.

they have nitrogen vacuoles for the main purpose of controlling their buoyancy while swimming, but it also serves as a nitrogen source when the amoebae can’t find food with sufficient nitrogen for too long, with the increased amount of storable fat allowing longer time between meals and allowing less energy to be spent keeping warm when submerged.

furred water rats typically take shelter in the towns of onyx when underwater, using them to hide from any stupid enough to try and hunt them. they also eat some of the rhizomes while they’re there.

wolf mouse

1: sharper canines
2: pack hunting
3: increased neuron count
4: decreased neuron size
5: more complex language center for better coordination
6: increased adult size
7: hexapedal posture to keep front limbs free
8: thicker exoskeleton
9: sharper tail
10: poison pores on the tail
11: increased fat stores

the wolf mouse is a very small pack hunter, averaging a body length of 6 inches with the same average tail length, however it is very good at communication, and can secrete heteropodatoxin to use to secure a meal by stabbing its prey with its tail and contracting the muscles around the poison sacs.

wolf mice only walk on their middle and back legs to keep the front legs free for using their claws to slice the throats of predators and prey alike, though most predators are either stupid and going to die soon, or a relative of the wolf mouse

wolf mice have more and smaller neurons than their ancestors, allowing them to be smarter and use objects to their advantage better, and decreasing the size of their blind spot. their increased intelligence allows them to take down prey much bigger than them, with a lone wolf mouse being able to take down an adolescent leaf dragon while only almost dying once or twice. this means that a pack of wolf mice could take down something the size of a pig without hassle and eat it as long as it’s not poisonous. as such they have developed a hunting strategy where they find another pack, exchange half of their mice, then take down a large animal that they eat all of as fast as they can without puking, before taking residence in its skull and ribcage, where they then increase their population, raise their young for a week, and then exit the corpse and, if the pack is too big, split it in half

gliding sootmouse

1: heat resistance
2: wing membrane between middle limbs
3: move middle 2 limbs onto the back
4: longer middle limbs
5: multi-layered abdominal, cranial, and thoracic exoskeleton to slow the spread of heat through it, allowing survival in fire for at least a few seconds while minimally increasing weight
6: longer pedipalps for object manipulation, but mainly picking berries
7: size increase
8: extend book lungs into bones, making them hollow
9: decreased neuron size and weight
10: spongy tissue between the brain and the skull to prevent concussions
11: increased sea onyx density in the ‘skin’ layer of the cytoplasm
12: hairs not on underside start becoming bigger and slightly spiky
13: detachable tail exoskeleton segments to make usable surface area for evaporative cooling


the gliding sootmouse is a descendant of the black mouse amoeba that can glide and has less bone mass to make it less energy intensive while also replacing the removed bone tissue with extensions of its book lungs for oxygen storage.

due to its multi-layer exoskeleton, the gliding sootmouse can fly through fire without having to worry about if it will make it out, but instead having to worry about how much of its limbs it’ll need to digest to get back in shape afterwards.

gliding sootmice are typically 5-7 inches long, with an extra 6-8 inches if you count the tail, which does have muscles all throughout it in this species as not keeping it at the same level as your body means unwanted drag, which is bad for flight, especially if it’s unpowered flight.

due to both an increased demand for energy from getting bigger, and an increased amount of surface area necessary for gliding, sootmice have a wingspan equal to their body length including the tail, of which the entire thing is covered in hairs that have capillaries running in and out of them to facilitate faster transfer of their glucose and oxygen to the rest of the body. as the oxygen demand during flight is higher than during sprinting, the hairs on the top and sides of their bodies have started developing spikes to have more surface area they can use

conversely, to reduce the energy and oxygen costs of existing and flying, they have made their neurons smaller. this left empty space in their skulls, which means the brain can hit the skull with more force more easily, so their skulls filled the empty space with a sponge-like tissue made specifically to prevent concussions, drastically decreasing rates of winning the darwin award due to brain damage

due to generally using their pedipalps first to grab things the sootmice have lengthened the ‘arms’ on them, and the noes that don’t have long enough pedipalps to reach the food they want either make really long pseudopods on them, or break the exoskeleton after the first joint on it, and then stretch it until they can reach the food, grab it, and then retract the pedipalp to a cm longer than it was before breaking, before eating the food.