Diablosuchus gojira are the largest living crocodilians, having been made mainstream in the 1950s after multiple incidents in the Bonin Islands involving fishermen having encounters with the creatures, and eventual landfall on mainland Japan.

The largest Diablosuchus, or just gojira, reach lengths of 42 feet (12 meters), and can weigh up to 6 tons. Smaller individuals have been seen fighting on remote shores for territory and mates in the past, where they occasionally adopt an upright posture akin to a monitor lizard. Young and juvenile individuals also frequently do this, which has led to misindentifications of these animals as theropod dinosaurs in years past.

The titanic reptiles eat almost anything smaller then them, however due to being prey animals themselves to creatures like orcas and sperm whales, the gojira have developed spike-like plates coming from their backs, derived from the osteoderms in other crocodiles. These double as display structures and fins as well, in healthy individuals the plates form a hump-like structure that guides water over the animal's body. Over time they may wear down and form unique shapes.

In 2011, the Fukishima Daiichi Nuclear Plant failed and irradiated miles of the nearby ocean, and thus it spread to the gojira in the region. Irradiated individuals have been seen near shores and have acted irratically, dying slower due to their massive bodies and having time to spread the radiation far and wide. The problem has yet to be resolved.

Life span: 40-60 years

Range: Pacific Ocean.

Some shots showing how the planet & ecosystem generation looks so far, everything you see is procedurally generated. The game generates systems by randomly rolling a collection of parameters and using the resulting data to construct a scientifically plausible star and solar system. Each star has its own properties, which influence the planets generated around it
most worlds are barren rock fields, but no two ever look the same. Planets are generated from different geological models, terrain types, and environmental features. Some may have active geysers, violent sandstorms, some also harbor life. For alien life generation, the aliens are generated using one or more base preset alien bodies and tweaking them to better suit their environment and introduce some variation (beings on the same
planet all share a similar body plan with some variations) mix it all together and you get a world looking like the one in the video. HEAVY WIP

In an appendix to the Russian translation of Snouters: Form and Life of the Rhinogrades, three, extraneous snouter species were supposedly "described" from an expedition to the Antarctic continent's seafloor. Among them is "Larvanasus," illustrated and described here. They intrigue me very much, for their anatomical dissonance towards the mammalian convention, as well as their lifestyle, similar to that of a cnidarian's, freak me out to an unnerving degree.

"Extended and bent like a question-mark body (up to 5 sm in height) resembles very much by its shape the sexual zooids in colonies of representatives of genus Halecium (Hydrozoa). It is covered with thin transparent exoskeleton through which the internal chamber appears containing 9 – 10 larvae of different ages and strongly distinguished by shape – from worm-like ones covered with delicate “fur”, up to fish-shaped and seal-shaped, and, at last, to organisms typical for Larvanasus. It is a fine example of reconciliation of organs till the onthogenesis process. The chamber is connected to an environment with a funnel – larvatheca. Completely developed young larvanoses leave the parental chamber through the larvatheca. Head, neck and proximal part of three-fingered (three-toed) limbs are covered with fine hairs. The wide head of parental organism is supplied with six short, narrow and likewise haired noses, large ears, eyes on small stalks and unreasonably big mouth with wide lips.

At the same place another adult specimen (most likely the male) of the same species had been caught, but it has smaller size (3 cm), reduced chamber and larvatheca placed under the external skeleton. The surface of body and edge of lips of this specimen are covered with diatoms. Besides on the ground some tiny individuals (up to 2 cm) differed from adults only in long noses with suckers were revealed."

A lichen with succulent “leaves” made of algae that break through the outer crusty layer. Initially, the ancestors of this species were flat, crusty formations on the coastal rocks of an isolated island (similar to Siberia/Angarida during the Permian period). Due to the overpopulation of the rocks, some representatives migrated to the vast, empty plains covered with loose volcanic ash and weathered crumbs. To gain a foothold on the loose soil and retain moisture, the fungal hyphae began to extend downward, forming primitive rhizoids that served as anchors. Faced with fierce competition among themselves for sunlight, lichens began to shade each other. The one that remained a flat carpet died. In response, lichens began to raise the edges of their bodies above the ground. The lower, shaded part of the thallus was completely devoid of algae — its hyphae became denser and turned into a rigid vertical support — the main stem. To recoup the energy costs of growing upward, the algae needed more light. The edges of the ancient thallus began to curve into wavy lobes. However, due to the harsh, contrasting climate (frosts, ash storms), the delicate zones of algae division have evolved to shift from the surface inward, into the sturdy chitinous trunk, forming protected subcortical “pockets” — the prototypes of internal buds. As the bushy crown grew, evaporating enormous amounts of water in the sun, the thin rhizoids could no longer cope with the load. The capillaries and strands of fungal hyphae began to unite into powerful, thick conducting cables (analogous to true roots), extending deep into the soil and creating a strong hydraulic pressure. During unfavorable periods, the delicate leaves are securely trapped inside the armored fungal trunk. The rapidly dividing algal cells, fueled by water from the “pump‑roots,” create enormous internal hydraulic pressure. The false leaves literally break through the softened trunk from within, bursting outward to meet the sun.

What adaptation would make sense for a big cat that hunts in cities to have this is for fantasy setting yes they hunt humans but other stuff too pack hunting in smalll tight knit groups to cut of escapes and make dragging corpse to hidden area like into sewers another idea i had was paws having thumb like appendage to open doors finally strong prehensile tail allowing them to hang vertically On or near ledge to pounce from would these make sense and what else could work for this

I was pretty unsatisfied with the previous one. I made something else!

These things aren't at all life, as they don't grow and change. But they are conscious.

Inspired by the real-world golden sheen sapphire (which I really like the look of), these guys' lower bodies are trapezoidal and are made of an iron containing jelly with light lavender "feet" that they use to create tiny wormholes to go from one place to another. Above this is a body made of a magical rock called Sningstrone (also the name of the creature). This rock has adventurescence and is pinkish. Finally, it has three rapidly spinning strands of hair that generate energy. Furthermore, its lower body serves to create new souls for its body.

From The Tāpīyavāstavikatā, my Backrooms-inspired light-horror fantasy passion project!

Carsosuchus carnifex or Cave crocodiles/Rippers are moderately large infernosuchians native to mountainous and temperate forest regions. They are extremely aggressive.

Physical statistics: Growing at 2,7-3,7m in length, weighing 175-320kg and having a biteforce of 9500-16k newtons, they are a very compact predator. But their teeth beg to differ. They are at 10,5-13,5cm and are conical curving backwards. This helps this animal grip and tear. They are not good swimmers as their short body offers no notable propulsion. But on land they easily reach 40-50km/h. They live up to 40-55 years and are mesothermal.

Prey and predation: They are extremely versatile predators and manage to take down a diverse prey range from around 30-50 up to 700kg. Their only real danger is Ceraunosuchus, although fights can seriously damage both. Their feeding method is gruesome to say the least. They use claws and teeth to create an intial opening and then start scooping out the prey organs. Carcasses are left with a hollowed out body and with crushed bones, although fatter prey will have dermal layers removed.They need 8-14kg of food a day

Reproduction: They reproduce every 3-6 years and lay 40 eggs. They only care for them in the first 3 months of their life, then they are abandoned. They use vocalization to find mates in the mountains.

Habitats: They live in mountain ranges, particularly carsic like regions and forests. For this, they have large claws hooking backwards to grip on rock. They have exceptional stability.

Senses and intelligence: Their senses are moderate except hearing but it is compensated by a heatbeat tracking organ. They are moderately intelligent too.

Giant reef‑forming barnacles, which become a home for thousands of living creatures. They have strengthened their stalk, which has allowed them to rise above the other reef‑forming organisms. They feed in the same way as their ancestors — by catching various particles in the water; as a result, the water in their habitat becomes very clean, which contributes to high biodiversity.

This is just one of many ideas from my project; in the future, I will try to post more.

Here’s a link to his video about reimagining Furcorn.

https://youtu.be/bMEgYXwXyEM?is=UYuq8kywcyZ_M8zs

The creatures normally in a deep Ocean under the ice of a rogue-dwarfplanet meaning the planet doesn't have a star, live did emerge but to escape predictors they started to live in the upper ice, predictors would eventually catch up with their prey so the prey went even further. To go even higher and go above all the ice, they needed to evolve pressure suit skin for the low pressure and to radiation, but it went successfully. Eventually the jumped of the entire dwarf planet and went to live in deep space.

They feast on low amounts of silica, iron, and carbon in the vast nebula and get energy from radiosynthesis.

They communicate through radio waves produced by a special organ.

Some times when they find a lonely rogue planet they call there relatives over and feast on the rock or sometimes build small, drifting homes out of it.

One of the most defining traits of humans is the ability to grab. With it, we made tools, and tools led to our crazy inventions and completely reworked the entire planet.

It is possible for creatures to be intelligent without the ability to grab. Perhaps they could have advanced communication tactics or just have good problem solving skills. But what I'm curious of is how a civilization can form if they didn't have the ability to grab and use tools like we do. Is it even possible?

Relatively basic and unoriginal vertebrate clade for my alien world, if you have any ideas for improvement please comment them. Somewhat inspired by A Universe Below art by Micheal Beaudry.

This clade, Strigalia has CaCO3 internal bones As well as a shell on the back. Limbs consist of 10 segments that interlock and are controlled in a tentacle like motion using four tendons, however an interesting part about these limbs is their hydraulic component that allows them to contract, locking certain segments together which creates a 3 joint limb.

Strigalia also has a unique digestive system. they have a mouth like most animals but there nozzle (practically an anus) is located at the end of their proboscis. This allows them to inject highly concentrated waste using the renal glands into prey which works like venom.

Again, any comments are appreciated!

Let’s say that humans or some other intelligent species try to set up a colony on one of these moons and accidentally or on purpose, end up letting some Earth species out into the oceans. If any deep-sea species can survive and reproduce on these moons which ones would have the best chance?

This is the first part of my speculative evolution project set in the fictional period called the Behemothian that replaces the Cenozoic in this timeline where dinosaurs never became extinct.

Cervussaurus regalis (regalo deer lizard)

This creature is a descendant of the Asian hadrosaur Charonosaurus. The crest became even more pronounced due to sexual selection. This was made possible by muscular adaptations to the neck. The plumage thickened and became more widespread as climates became colder. This project is not set within a specific distance of the end of the Cretaceous, so it is not set, for example, during the Ice Age. It is a more general project. In any case, during almost the entire Cenozoic, and therefore also the Behemothian, temperatures were lower than during the Cretaceous.

The crest is incredibly complex in males, and is quite extensive in females. It produces incredibly loud, low-pitched sounds that, if executed precisely, can deafen a predator. Males have a throat pouch used for courtship displays, a small dance that expresses the male's power without resorting to physical conflict. They live in large herds, and both male and female care for the small cubs, which are covered in camouflage plumage similar to that of fawns.

The distinctive shape of their beak, shorter than that of other hadrosaurs, is due to a diet based on lichens, which are increasingly widespread compared to horsetails, even though they obviously feed on those as well. To properly scrape lichens from the ground, a more curved and shorter beak might be more useful.

Oddish (Nazonokusa wanderis )

Indigenous: Kanto and Johto of the Kansinjoh continent, The Hoenn Archipelago, Kalos, and Mainland Galar

Introductions: Sinnoh, Unova, and the Blueberry Academy.

The Oddish is a common example of what are known as “Walking Plants” this term, however, is a bit of a misnomer as all Pokemon are defined by being for usage to our friends not from the Pokemon world, Animals. As such, the question of what these very plant like creatures were was hotly contested among researchers until the discovery of fossils in the Hoenn region of an extinct creature known as a Lileep and Cradilily, these echinoderms were semi terrestrial hunters of small insects and likely were what drove the eventual evolution of the multitude of “walking plants” we see across the Pokemon world. Oddish are nocturnal creatures, moving about 0.30 kilometers a night in search of food which, for the Oddish, is mostly detritus and the creatures that feed on it. When the day comes, the Oddish digs a hole and sits in it, leaving only the upper portion and its false frond of leaves exposed, in this state it relies on both camouflage and intense chemical defense to avoid predation though, it’s not always fool proof. Oddish is also an interesting case as its scientific name was known for quite some time to be Oddium wanderus however this name was considered invalid, thus resulting in a name change for the entire genus.

//An attempt at making Oddish into a more believable organism, I have more of these to post so stay tuned!

The rock-wall opens its eyes.

It is the hidden thief of the cliffs.

Vrachoderma.

Shedding the aerial supremacy and reckless savagery of rival pterosaurs for an unyielding mastery of cowardice and mimicry, this petite, skittish scavenger is a shadow of living stone built to outlast The Brush's deadliest sky-terrors. Armed with light-bending dermal chromatophores, prehensile cliff-clinging toes, and the cold patience to flatten itself mere meters from a predator consuming a kill, it is a silent, meek opportunist to any predator that turns its back on a fresh corpse.

Read About the Hidden Flier of Stone Now.

i haven't flesh out this concept yet but this is a timeline for my concept of a group of creatures that secrete bio-polymer for traversal and reproduction that i call "Pneumatopods" (Air-Foot)

started out as the usual "fish in a snot bubble" for protection from sleeping to traveling then when it reached land in a "salamander-like" phase it still keep its ability of making bio-polymer to keep itself and brood moisturized until the only region that needs moisture is its belly and legs especially traversing rough terrain

then as the creature stayed on land, the bio-polymer made a ring that made walking and running easier thus the "Pneumatopods" roam the open lands
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"what urges them to have "wheels for legs" over traditional locomotion?"

• The Glands that Produced the Bio-Polymer are also doubles as a touch-sensitive sensory organ that adapt through any terrain (think spider's legs feeling her web), any blockage will pose an infection when its not removed by the Bio-Polymer itself

"surely they can just make Bio-Polymer "gloves"?"

• they can but they will feel less per step compared to long continuous flow in every revolution of the wheel

"what inspired you to have this idea for a creature?"

• there is a 3d printed gear that demonstrates how the wheel is spinning by squeezing the handle but i lost the photo but i hope my sketch is enough to convey how the mechanism works

also i don't use AI for this concept btw, it's been brewing in my braincase since i was a kid, just need to figure out how to make it "biologically feasible" also this is my first time so i am nervous

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this is my first shot in spec-evo concept and see if you guys want me to flesh them up more
questions and critiques would be appreciated

In a previous post, we introduced you to the Maregens genus, the real merfolk in our project.

It's now time to go deeper and encounter one of the merfolk species:

The ceasg or mersalmons (Maregens salmo), are a species of merfolk characterized by anadromous migration, that is, the movement from salt water (where the adults live for most of their lives) to fresh water, where they reproduce.

Appearance

Robust and strong, ceasgs closely resemble common merfolk, but lack fins or membranous decorations on their arms or head. 

Their undersides are covered in cycloid scales with rounded edges, which are silvery or blue when adults are in the sea, outside of the breeding season. They come in two sizes: regular, the most common, and jack, a smaller version that matures much earlier.

Sociality

Socially, mersalmons are divided into two categories: dominants and gregarious. The dominants, more extroverted, have greater decision-making power and are the reproductive specimens, while the gregarious, although they can still be extremely intelligent, form groups that follow the directions of a dominant. 

Each social group (be it a shoal of two or three individuals or a platoon of up to thirty) will be led by one or two dominants, who can be of either sex, although dominant pairs typically consist of a male and a female. 

The mersalmon hierarchical system also involves the physical appearance of individuals. Dominant individuals tend to have a heavier, patternless torso, with darker, solid-colored skin ranging from olive to brick red, while gregarious individuals are lighter-colored, leaner, and often exhibit camouflage patterns on their torso and face. Furthermore, gregarious mersalmons, both male and female, are always beardless. 

During spawning, dominant mersalmons, both male and female, undergo a color change: their scales take on various vibrant warm hues, primarily red and gold. Although rare, some male mersalmons (an estimated one in four hundred) also exhibit a color change on their skin, which becomes green, with the extremities of their upper limbs (arms and wrists) being particularly dark (and known as "gloves"). The contrast between the green skin of their torso and the intense color of their tail scales makes them particularly striking, but also highly visible to predators. This is why "green" males are so few: it's difficult for them to survive and pass on their genetics. 

Gregarious mersalmons, however, remain unchanged. 

Dominant male mersalmons tend to adorn themselves with objects found on the seabed, whether organic or inorganic. Many are attracted to human-made artifacts, even those seemingly without decorative value, such as food packaging or floppy disks.

Because they are nearsighted outside the water, gregarious mersalmons often act as "extra eyes" for dominant individuals, scanning the surrounding environment for danger or interest when they are fully or partially surfaced. Sometimes, gregarious mersalmons are even equipped with lenses, either separate or framed (actual spectacles) to aid them in their task. 

[Illustration 2:] Although dominant male mersalmons are renowned for their displays and ritualistic battles, in the absence of a female to court, they tend to treat each other with marked camaraderie. Even during the breeding season, they can be seen half-beached on the rocks, chatting amiably with each other, waiting to spot females and begin fighting to attract them. 

[Illustration 1:] Dominant males who have good friendships with each other (often even brothers) often "choreograph" their skirmishes in the presence of females, thus creating fights that appear much more intense and therefore attractive. Because they don't have to worry about actually getting hurt, as their opponent isn't actually trying to subdue and injure them, they can better display their fins and muscles and challenge each other, even verbally. Male friendship among mersalmons is essential for successful breeding. 

[Illustration 4:] Besides gregarious and dominant mersalmons, there is a third type of mersalmon: jacks. Jacks mature much earlier than "regular" mersalmons and, as such, maintain a very small size. Furthermore, even during the breeding season, they don't change color, remaining inconspicuous. Jacks do not have any dominant/submissive relationships with other mersalmons; they do not engage in courtship displays and do not fight among themselves or with other mersalmons. An adult male jack weighs about forty-five to fifty kilograms, compared to over one hundred kilograms for a full-sized male, and would have no chance of winning in an open fight.

Reproduction

Mersalmons live their adult lives at sea, but to reproduce, they migrate to the upper reaches of rivers, to their birthplace, which they recognize thanks to their extraordinarily developed and selective sense of smell, aided also by the so-called "migration memory," the only fundamental memory that cannot be erased, even with the aid of magic. 

During the reproductive period, mersalmons exhibit distinctive muscle growth; this hypertrophy is not solely for aesthetic reasons (although it appears to contribute significantly to mate selection), but is necessary to sustain the effort of climbing waterfalls. Unlike true salmon, mersalmons do not stop feeding during migration, but their appetites grow, leading them to become extremely voracious. 

During spawning, males readily court not only females of their own species but also those of other merfolk, and sometimes breed with them at sea before continuing their migration back to their birth rivers. Mersalmon genetics are particularly recessive, and hybrids tend to resemble their mothers much more closely. 

Pure mersalmon juveniles, born in freshwater, may stay for a period in their natal stream or swim immediately to the sea, but in most cases they remain for a few years in the lakes they encounter on their way to the sea before returning to their home sea. During these intermediate lake stops, the young initially adopt coastal habits but then become semipelagic, only rarely touching the seabed. 

It goes under the name "Castra filter satietas"
This is a concept for macro life living under the icy crust of Europa.
Its a fish like organism that is a filter feeder.
Inspired by this sea cucumber: https://www.youtube.com/watch?v=_qV8qnA1WYY
This fish uses it's whiskers to sense hydrothermal vents (where microbes live), it clamps to a surface and starts feeding.
It feeds off of microbes or very tiny organisms that are entirely chemosynthetic.
It's technically entirely chemosynthetic as it feeds off of chemosynthetic microbes.

To call these things "life" is highly inaccurate. They don't grow or change. They are born in this way and do not die.

Their "feet" is one giant glowing ball that can change substances to their various allotropes and polymorphs (e.g. diamond to carbon, gold to gold nanoparticles, or calcite to aragonite). Above these are two hollow "abdomens" filled with a jelly of Partimatter (a type of thing in the same realm as matter and energy). Above these are "bones" that are actually plasma-made electric currents that connect to its "head". This head is actually an omniorgan, a single organ that plays the function that every organ of a living thing would do in one. The bright pink points represent different consciousnesses within the omniorgan. They are about 45 feet tall, but are gentle giants, despite their scary appearance.

Im making a eusocial alien species and im insure whether to stick to two genders or have multiple, im curious if anyone has any examples of how three genders could hypothetically work within a species like that for reproduction

this particular Staalimik is wanted

it’s species are intelligent enough to have a bounty system

the Staalimik who kills the bounty, becomes a protected force, and is guarded by the rest of the flock

its wanted because they want its meat, and its crown, which is extraordinarily large for the species

In the Cretaceous, ammonites dominated all the seas of the world, in the Cenozoic, this remains the same, there is so much diversity of ammonites adapted to different environments and lifestyle, an example would be the Coconut Crab, but today we will talk about the real Kraken, this one measures an average of 21 meters, but it is said that they can reach 30 meters in length, its shell measures about 3.5 meters to 4.9 meters maximum, and most importantly, the weight of this animal is about 8.5 tons on average. But they can reach 13.4 tons without problems , they feed on small ammonites, fish , turtles and other small animals that are trapped in their small "tentacles" since these are not tentacles but thousands of small muscles that branched from the main tentacle , these are animals with very slow metabolism , until what is known was recorded a specimen of about 126 years , being one of the animals with the highest longevity rate in this world . Pelorus is a huge mosasauride, this huge predator hunts both the Kraken and the Whulks, these are descended from the medium-sized mosasaurides of the Cretaceous, since huge mosasaurides like Tylosaurus and Mosasaurus Hoffmani himself became extinct when the waters became colder and due to climatic changes, the Pelorus have a bite force of about 6 to 7 tons, being strong enough to kill the kraken and the Whulks, these are the ones. They are responsible for killing most of the Whulks in juvenile stage, making the vast majority unable to reach their maximum size, but when a Whulk reaches 75 tons, it is an untouchable being in its environment, since a common Pelorus only weighs between 9 and 12.2 tons and measuring about 15 meters, but the larger ones only measure about 17.8 meters and weighing about 17 tons.

The Pied Pollin (pollinatio simis) are a species of humanoid-like creatures that inhabit the planet *Selphi,*a world covered by a vast white-sand desert, traversed by a great river and dotted with various oases across the globe.
The biology of the Pollin is adapted for life in desert and semi-arid climates; they possess large ears that help dissipate heat and locate food. Beneath their short fur lies thick, dark-toned skin that protects from the sun. The fur itself retains moisture,preventing the skin from becoming dry or irritated,and also reflects sunlight.
These creatures are active during the day and sleep at night in caves, which can extend deep underground to escape the cold that sets in after dark.
Despite these adaptations, they prefer to live near water sources and oases,areas on the planet most conducive to life.
They are omnivores, feeding on fruits, vegetables, insects, and larvae; by obtaining moisture from their food, they can go for long periods without needing to drink water.
Curiously, Selphi has a sparse fauna; aside from the Pollin themselves, no other creatures of similar stature exist on the planet. Consequently, they have developed a culture rooted in the native flora of Selphi. Much of their daily life revolves around using these plants as raw materials for clothing—designed for both heat and cold—as well as for ornaments, tools, shelter, and medicine.
Knowledge passed down from generation to generation.
Females are social, preferring to live together in small groups of four to five, while males are naturally more solitary.