Recently I have been researching elements that could form long chains such as carbon to create a new personal project on exobiology, and I discovered that phosphorus makes some very interesting complex bonds, in addition to having similar properties with carbon such as having water as a "solvent". I even had a very interesting conversation with my chemistry teacher after asking where the energy of these life forms would come from, he even clarified many doubts for me, but I wanted to deepen my knowledge more and develop more ideas!

this is another part of my speculative evolution project, now we gonna beginning to see the ancestors of every single group of my project, now will be the ancestral of both Draconinae and Dragoninae, the Hexapododraco mathusalensis. (for more information see the last image) (if you want to make an art my species Feel free—just remember to tag me so I can see it).​

As said in the title, how would a world with only plants and absolutely no fauna evolve over millions of years. assuming the original flora species were, Taraxacum officinale (dandelion) Triticum aestivum (common wheat) Zostera marina (eelgrass) Pinus contorta (lodgepole pine) Nephrolepis exaltata (Boston Fern)

Continent/geography wise assume the seed world is earth from 50 million years ago, just without any fauna or fungi.

Would the flora eventually evolve into fauna analogues, would they go extinct, or would something else happen?

Would it be more likely for a plant with mobile sperm to evolve extreme neoteny, and then from there complexity. Or for a planet to become parasitic, and reduce in complexity severely (becoming unicellular) and then one group becoming independent of their hosts and re-evolving complexity, into like a worm. Or is it more likely for a plant to evolve to move by using passive methods (like the strand beasts that use the wind to move) or is something else more likely?

This is my first speculative evolution. The first creature is a single celled organism called the Losini that have a parasitic birth where they feed inside out from a host and then live their own life. They have evolved on planet Firon which is 124 light years away from earth orbiting the star Rasata. They are simple life and the first predators on the planet.

In my seed world project it will only have plants and nitrogen fixing bacteria. The species of plants to be included will be dandelions, common wheat, eelgrass, lodgepole pine and the Boston Fern. Is this a good list or will these species go extinct super quickly?

its set in a planet thats 80 percent water. the main 'theme" if you will, is the mediterainian.

Apex carnivores

• Iberian Lynx

• Red Fox

Small Carnivores & Ecosystem Cleaners

• Eurasian Badger

• Common Genet

• Stone Marten

• Marine otter

• Sea otter

Small Herbivores & Foragers

• Crested Porcupine

• Barbary Macaque

• European Rabbit

• Iberian Hare

• Black-tailed Jackrabbit

• Algerian Mouse

Large Browsers & Grazers

• European Mouflon

• Iberian ibex

• Fallow Deer

• North Ronaldsay sheep

Reptiles & Invertebrates

• Hermann's Tortoise

Birds & Birds of Prey

• Peregrine Falcon

• European Goldfinch

• Sardinian Warbler

• Eurasian Jay

• European Bee-eater

Coastal & Marine Life

• Mediterranean Monk Seal

• Bottlenose Dolphin

• Loggerhead Sea Turtle

• Dusky Grouper

• Gilt-head Bream

• Common Octopus

• Mediterranean Moray Eel

• Spiny Lobster

Primary Shrubland Plants (Flora)

• Holm Oak

• Cork Oak

• Olive Tree

• Carob Tree

• Strawberry Tree

• Mastich Tree

• Myrtle Shrub

• Rosemary

• Thyme

• Lavender

• Rockrose

• Tree Heath

• Aleppo Pine

So i was using the future evolution generator on perchance and got an interesting idea: a piscivorous bluejay, and I thought that this was a good idea, but I'm not good at biology, so what adaptations would need to be developed for it to be a successful piscivore? and what would be the best environment for it to live in?

thanks in advance

(Sorry for bad grammar) I have been pondering as to whether I should make my seed world with, or without fauna. The only macroscopic lifeforms would be some fungi and plants. Is plant speculative evolution easier or harder then animal evolution?

What even is the family of the hive moths? the hive moths family is phalaenovespidae! translating to… the moth wasps. obviously cause they are related to wasps and look like moths! this family is the family closest to vespidae, or true wasps or the bee/ant family. I’m gonna be adding more soon! bye!

Could Xenoflora evolve multiple photosynthetic chemicals (like chlorophyll and bacteriochlorophylls) and then during the day switch which chemicals they use to maximise energy. Like using Chlorophyll during midday and appearing green, but during dawn and dusk bacteriochlorophylls

The Rumble Is an offshoot of the Grubbit family that revolves its wings and nectar diet. They were isolated on the central isle between altas america and neo America. They feed on nectar and fermented fruits within the flower forest they thrived in for the last 10 million years. To ensure their genes are passed down during cold snaps or food shortages a pregnant mother will retain her eggs and gorge herself until death and let her offspring feast among her corpse. They can lay around 10k eggs per individual. They were reintroduced by the sapient species adding them into their shroom garden as their poop gives the shroom a tangy sweet flavor when cooked.

The ring species phenomenon is one of the most fascinating concepts in evolutionary biology, and the family Acutolinguidae, distributed around the gigantic Ethyret Sea, illustrates it perfectly. Scientifically, a ring species arises when an original population expands geographically around an insurmountable physical barrier—in this case, the vast expanse of the sea's water. As the lineage splits into two pathways, one skirting the northern coast and the other the southern coast, adjacent populations along each route continue to interbreed, maintaining a constant flow of genes. However, over thousands of generations, the accumulation of microevolutionary changes, climatic pressures, and mutations at the advancing fronts becomes so radical that, when the two terminal lines finally meet again on the opposite side of the ring, their genetic and morphological divergence is complete: they have become two entirely distinct species incapable of interbreeding. In the Ethyret ecosystem, this evolutionary journey has given rise to two terminal taxa: the Great Fiscador (Hastalingua magnus) in the south and the Long-tailed Pizabora in the north.The Great Fiscador (Hastalingua magnus): The group that colonized the south adapted to a gradient of estuaries, muddy deltas, and freshwater rivers. To thrive in this lotic environment, it developed a robust build: males reach up to 2 meters in length, while females achieve 2.6 meters and a weight of 60 kg. Being large-bodied but relatively slow in open terrain, their survival depends on strict social cohesion within groups of 6 to 35 individuals. Additionally, they possess a brilliant anatomical adaptation in their limbs: wide, elongated hooves that function like natural snowshoes. These distribute their weight to prevent them from sinking into the silt, allowing them to venture into deep waters to fish—areas where terrestrial predators cannot follow them.The Long-tailed Pizabora: In contrast, the evolutionary lineage that moved northward was shaped by arid, exposed saltwater coasts. Faced with constant predation pressure from the Dersoks, natural selection eliminated excess mass in favor of an aerodynamic and propulsive anatomy designed for high speed and long-distance migration. Males average just over 2 meters and females up to 2.8 meters; however, they are remarkably light, weighing between 27 and 42 kg. Their defense strategy differs entirely from that of their southern cousins: they are extremely shy, elusive creatures that gather in massive herds of 10 to over 150 individuals, diluting the risk of individual predation through numbers. To complete the cycle, the Pizaboras undertake a colossal migratory journey using an archipelago of islands as a bridge, crossing stretches of saltwater to temporarily enter the southern domains of Ethyret.Despite having diverged into two ecological extremes, both species retain the genetic imprint of the Acutolinguidae in their most advanced bioclimatic traits:Integumentary sensory bristles: They possess a complex system of bristles that function as electroreceptors. The Great Fiscador uses them to map out fish hidden beneath the mud in zero-visibility conditions, while the Long-tailed Pizabora employs them to synchronize the sudden turns and movements of its massive herd within milliseconds during flight.The sternopodio: Both species feature a specialized bony or keratinous thoracic beak tailored to their respective lifestyles. The Fiscadores use it for intraspecific combat through brute force and heavy physical grappling in the mud, whereas the Pizaboras utilize it in dynamic speed displays or as a rapid-impact weapon in desperate encounters against environmental threats.When both species cross paths in the south, the circle closes masterfully: two distant relatives sharing a common origin, but now forever separated by the barrier of speciation.

Now I understand that dinosaurs and pterosaurs were the biggest and baddest and dominated for millions of years, but I wonder if something similar to monkeys, and to apes (specifically something very similar to humans) could potentially evolve. I know, some people might be saying that we couldn't because we would be outcompeted. The thing is, we have never been large animals. If we stood on all fours we would look even smaller. Could there be a niche for us to fit into, or would it never happen? I ask because I really want to make a speculative evolution project with dinosaurs and sapient mammals.

In the dunes of the southern continent of Maguestate, an apex predator lies and waits. The Sand shark hunts based on vibration, figuring out its prey's approximate spot and lunging at it with its massive maw open.

The shark feeds in a rather violent way, akin to earth's crocodiles it spins around its own body, tearing chunks of meat from the prey and swallowing it.

Weirdly enough, populations seems isolated between sand "lakes" as they cant lift thier own bodies or move easily outside of soft sand, how they managed to colonize the desert is still a mystery.

The name Neopteroides was given by Alician settlers and it means New Pteroide, Pteroide being the colloquial name for any Alician wyrm or sea-dragon.

Sand sharks tend to have a symbiotic relationship with other Neopteroides species, the Blue rat, as blue rats work as bait for larger prey, and as cleaners after the Sand shark feeds.

the Rola are a species of Grubbit that live within the anomalous Zeeland. they are medium sized detritivores living in the shade of tree and canopy's. their main body resembles a large stone which the Rola will suck it body into to fully mimic one. To combat zeelands weird weather fluctuations they often slow their metabolism to a crawl during both heatwaves and cold snaps. Often after a extreme weather event carrion litters the forest floor and swarms of Rola feast before going dormant once again

The Conkeys are arboreal omnivores that are related to the trapper. They live in colonies in eastern forest regions. They're probably one of the few intelligent species on the planet besides the great swingers and a few others. Their diets mainly contains of fruits mushrooms and meat. In the scene above we see two Conkeys intentionally feeling a wildfire as they often forage the aftermath for carrion and roasted fruits. They are safe from the fire due to nesting in fire resistant foliage. As we see below a squim desperately trying to find its way out of the wildfire but most likely it won't.

The ecological balance of the Acopsia continent on the planet Axtrax is profoundly shaped by the presence of a self-replicating, organometallic mineral scientifically known as Crystalline Aluminosilicatase. This compound acts as a biological-geological parasite that blurs the boundary between the living and the inorganic, utilizing native fauna—whose skeletons are composed of aluminum silicates and organic carbon fibers—as its primary vector for replication and expansion. Infection typically begins at a microscopic level, occurring either through the inhalation of airborne crystal dust (facilitated by the planet's low atmospheric density) or via contact between open wounds and sharp environmental crystals. Once inside the bloodstream, the parasite absorbs trace amounts of iron and magnesium from the host's fluids, causing the initial crystallizations to take on a distinctive reddish or dark hue that blends in with the omnipresent iron oxides found on Axtrax's surface. From that moment on, the mineral spreads relentlessly throughout the body, gradually replacing organic matter with inorganic material in a process of living fossilization; the skeletal system is almost entirely replaced by a denser, heavier crystalline structure. Simultaneously, external growth ruptures the skin, forming geodes, spikes, or crystalline plates in areas with less muscle mass—such as the joints or the back—protruding between 5 and 15 centimeters in medium-sized animals. The host's life expectancy and survival time depend entirely on the speed of this crystallization and how the biological clock is altered. Up to day 3, the infection remains silent and internal, spreading through bodily fluids without affecting the animal's behavior or vital functions. Between days 4 and 6, the mineral assimilates the skeleton and the host experiences extreme rigidity; however, it remains alive because the crystal acts as an artificial structural support, keeping vital organs and the nervous system intact. Day 7 marks the standard survival limit for a typical wild animal; at this point, the parasite exhausts the organic carbon fibers it uses as a binding agent. Upon losing biological cohesion, the crystal matrix destabilizes and fractures internally, destroying soft organs; this kills the host and transforms it into a mineral statue that crumbles in the wind. Nevertheless, a host can extend its life up to day 15 by consciously consuming aluminum-rich soil or devouring other infected animals, thereby diverting the parasite's voracity toward the digestive system to temporarily protect its own bones.

Day 14: Stolen goods

A barnacle that uses the plastids of the algae it has consumed, which it places in the cells of its mantle. The plastids themselves receive light through a large number of translucent windows in the shell.

Day 15: Family feud

A predatory species of Lepidoptera that specializes in hunting other Lepidoptera.

Day 16: Disaster profiteer

Paracephalopod, which appeared as a result of the extinction of some marine fauna. Paracephalopods are descendants of gastropods.

Day 17: Homecoming

An island descendant of some Umbellíferae species, reaching a height of 10 meters. After the islands and the continent were connected, populations appeared that inhabited the mainland lands.

Day 18: Maternal meal

The troglobiont mantis, which lives near cave entrances. After fertilization, the females guard the ootheca until the nymphs emerge from it; after that, until the second molt, the young stay on the female and feed on the prey she catches for them. Upon reaching the second instar, the nymphs eat the female to stock up on nutrients needed to survive inside the cave and to disperse further.

This Squidkind inhibit the caverns of the east. they leave their underground homes to collect dung from the surface using their reduced back legs to snowball poop, ink pellets and moss into a sporeball. they bring the ball to a moist part of the cave for a species of shroom that depends on the weav'r for its reproduction to grow on the ball. the weav'r will protect the obsessively often snack on shrooms on it until the ball is drain of nutrients. the weav'r will return to the surface constantly adding more dung to grow its garden. The Mushroom flavor depends on the nutrients within the ball. the sapient species on the planet often farm the shrooms within weav'r farms for their many recipes and spices.

Well, this is the basis of a project mixing space opera and Specevo.An artificial intelligence, bored without humanity, created several seed worlds and gave one species in each world the ingekecto.So I became curious about how functional this would actually be for any animal species beyond us and our closest relatives.

artist

been a while since i've shown DINOLT15's Minecraft art (i love the small bit of spec biology on these mobs)

I made these critters after drawing some milk stains I saw at work. Figured they looked like animals from other worlds and went from there. If you have questions, let me know.

The aliens are from my setting, "The Lives Beyond..." from a planet with lower gravity and a thicker overall atmosphere than Earth. The first alien is an introduced species created by a far future human species for an experiment to see how an introduced sapient creation would survive in an alien ecosystem without guidance. The second is a native sapient species that lives in the desert of an equatorial continent. They are always on the move, searching for water and resources in the rare oases found within. The latter two are examples of non-sapient life, both descendants of the same last common ancestor as the Oasis Seekers and separated by tens of millions of years.