Hola a todos. Quiero abrir un debate serio sobre el mito de las sirenas, alejándonos por completo de la fantasía infantil de Disney y de la respuesta científica condescendiente que culpa de todo al escorbuto o a los manatíes.

Sabemos que más del 71% del océano permanece completamente inexplorado y sin cartografiar. Basándome en las leyes de la física abisal, la evolución convergente, crónicas históricas y la lógica marina, propongo que los avistamientos corresponden a una criatura real: el máximo depredador sónico del océano.

Aquí les dejo los puntos clave de mi teoría para que la debatamos y la mejoremos en los comentarios:

1. El misterio del diario de Colón: ¿El primer avistamiento de Tritones?

La ciencia insiste en que los marineros confundían manatíes o delfines con sirenas. De hecho, usan como prueba el diario de a bordo de Cristóbal Colón del 9 de enero de 1493, donde escribió textualmente:

«...vio tres sirenas que salieron bien alto de la mar, pero no eran tan hermosas como las pintaban, que en alguna manera tenían forma de hombre en la cara».

Analicemos esto con lógica destructiva para la versión oficial:

No eran delfines: Los navegantes europeos conocían de sobra a los delfines; convivían con ellos a diario. Un marinero experto jamás diría que un delfín con su hocico alargado e inconfundible "tiene forma de hombre en la cara".

No eran manatíes (El descarte físico): Un manatí es un animal masivo, cilíndrico y obeso (de hasta 1,500 kg). Sus huesos son densos y pesados para ayudarlo a hundirse. Anatómicamente, un manatí solo asoma la nariz horizontalmente; es físicamente imposible que un manatí se impulse verticalmente y salga "bien alto de la mar".

La Hipótesis del Tritón: Históricamente, los marineros europeos estaban obsesionados con la fantasía romántica de la mujer marina (sirena). Sin embargo, Colón describe rostros con facciones rudas, robustas y masculinas. Lo que Colón avistó probablemente no fueron sirenas, sino tritones: los machos o guerreros de la manada. Criaturas atléticas, de fisionomía imponente y musculatura poderosa capaces de romper la superficie con fuerza para vigilar su entorno.

1. Coincidencia global y silueta delgada

Mientras los manatíes se ven como enormes barriles flotantes, marineros de regiones de todo el mundo que jamás compartieron idioma ni cultura —desde Asia hasta las tribus de África occidental y la Amazonía— describieron de forma independiente una silueta esbelta, delgada y ágil. Una silueta estilizada y veloz en alta mar no pertenece a un herbívoro lento; es el diseño hidrodinámico de un depredador de alta velocidad.

1. Anatomía adaptada al abismo (No humana)

No se imaginen a un humano común. Visualicen a un ser con simetría bilateral y torso erguido (evolución convergente), pero diseñado para la presión extrema:

Piel azulada: El camuflaje perfecto en la penumbra marina, donde el azul es el último color del espectro de luz en desaparecer.

Biología interna abisal: Sin pulmones que colapsen. Huesos de cartílago flexible y sangre basada en cobre (hemocianina), lo que le otorga un rendimiento óptimo en aguas congeladas y un tono azul natural a sus órganos.

1. El "Efecto Manada" y la inmunidad absoluta

Muchos descartan su existencia porque nunca se han encontrado restos en estómagos de orcas o tiburones. Mi respuesta es la alta inteligencia social. Al igual que las orcas no tienen depredadores porque cazan en manadas tácticas y organizadas, este ser posee un coeficiente absoluto en el mar. Enfrentar a un clan coordinado de estos humanoides marinos equivale a la muerte para cualquier otra especie. No son presas de nadie; son los soberanos de las corrientes nómadas.

1. Una longevidad extrema para burlar al ser humano

Propongo que esta criatura tiene una expectativa de vida que supera con creces a la de las tortugas marinas (viviendo siglos, similar al tiburón de Groenlandia gracias al metabolismo lento del frío abisal).

Esta longevidad extrema permite una acumulación y transmisión de conocimiento generacional sin precedentes. Los miembros más viejos de la manada recuerdan las rutas de navegación del ser humano, el peligro de las redes y el ruido de los sonares, enseñando a las posteriores generaciones a mantenerse ocultos en ese 71% del océano donde no podemos alcanzarlos.

1. Ojos de sonido: El sigilo acústico definitivo

En la oscuridad total del abismo, destellar luz (bioluminiscencia) es una debilidad que expone tu posición ante las presas. Esta criatura evolucionó para tener "ojos sonoros". Utilizan una frecuencia de ecolocalización tan avanzada (ultrasónica o infrasónica) que es completamente inaudible para los humanos y los radares convencionales. Con este sistema, mapean el entorno en 3D, se comunican en silencio y coordinan emboscadas perfectas.

En conclusión: Las sirenas y tritones del mito no son fantasías; son el reflejo distorsionado de un homínido o cetáceo-humanoide de élite. Una especie tan inteligente que aprendió que el lugar más seguro para reinar es el vasto océano que el ser humano aún no puede pisar.

¿Qué opinan? ¿Qué fallas evolutivas o físicas le encuentran? Los leo para debatir y refinar la teoría.

Imagine a humanoid, bipedal species that would have both the appearance and some of the body structures of beetles like the Kuwagata, The Hercules and the Rhino Beetle and also the intelligence and human-level mental capabilities, the capability to speak and so on.

What they would look or be like, what would have happened in their evolution in order to this to happen?

Back again yall, and so is my sketchbook! (And my crappy camera)

Hope yall like my Lil doodles. I updated my Mechagodzilla design, though the camera doesn't do it justice :/

Also my Bagan design is definitely accepting constructive criticism. I tried to merge his most famous design with his original concept of being a combination of other monsters, but he don't look quite right rn.

Also here's the drawing in order for anyone wondering:

1. Destoroyah

2. Ghidorah

3. Monster X

4. Mechagodzilla

5. Orga

6. Gryphon

7. Bagan

One of the most horrifying creatures on the planet: Grimdark Vultures or Slaughterfowl(Vultur Carnifex). This avian's beak is meant specifically to shear through flesh.

Physical traits: At a wingspan of 4.5-6m and a weight of 38-48kg, they are not impressive. But what is impressive is their traits. Their beak has lost weight and become basically one giant axe/tooth, meant to shear through flesh and swallow bones. Their claws are partially hollow too, all to save weight. Like bald vultures, their heads are featherless.

Prey and predation: Slaughterfowl prey on small animals, carrion and injured animals in mobs. They are not hunted much, due to a low meat to risk value but many creatures can hunt one. But since they are social creatures who live in mobs of 20-30 specimens, this is hard to do. If they are going for live prey they often eat the prey alive, a brutal behavior but faster than killing.

Reproduction:During mating season they reunite in massive mobs of 50-100 specimens where they pick mates. They mate then they go to a cliffside to raise their young. The young of the Slaughterfowl already is indipendent at 2 months age and they immiediately join a group.

Habitats: Mountain Ranges, Deserts and Plains. Tropical forests are seldom visited due to difficulty of movement.

Senses and intelligence: Their poor hearing is made for phenomal smell and good sight. They are moderately intelligent creatures

I have joined up with a friend of a friend who is building a speculative world project called Tahdora. I have joined them so that I can get a better understanding of the whole process, and am helping with illustrations for their project. This is a scene of a very early part of their worlds history and shows some hydrothermal vents with bacterial biofilm feeding off the heat and nutrients. Before anyone says the hydrothermal vents are unrealistic its just my art style that i like ('Artists impression' I guess). Anyways i provided in-making images as always to prove it isnt ai. I hope to continue to improve my skills and knowledge and will eventually start my own speculative world project properly. Enjoy!!! Also please provide any insight, recommendations, constructive criticism etc that you have.

A cold blooded animal that uses their electric organ to heat itself. The electric organ requires only electrolytes from plants and water.

The vast majority of marine reptiles that dominated the seas have become extinct among them were found the pliosaurs that did not survive at the end of the Cretaceous, the ichthyosaurs did reach the Cenozoic but only represented by 2 species, the ichthyosaurs did not arrive at the end of the Miocene, and the plesiosaurs that remain in this world that are the elasmosaurs are not at their peak, although the elasmosaurs did not spread at the moment, that does not mean that they are dominating the The few species of these are located in Antarctica and Canada due to the great competition with other marine reptiles, among these are the pterosaurs, these emerged from a group of Nyctosaurids that were adapting to a lifestyle similar to that of a Hesperonitheus, these, unlike birds, are mostly carnivorous, their evolution has been rare, without a doubt what is the fin to move better is not its tail because the tail was almost useless, this is actually the case. The result of increasing and thinning the vertebrae of the spine to have large muscles and tendons to do the job, and the big fin is nothing more than the hind legs of the animal, only joined by huge impermeable muscles, these give birth to live offspring because their eggs in the past were similar to that of reptiles like the Squamata, as they only had to develop a kind of bag where they could retain the embryo, which was once the egg, is now a menbrana that is linked by huge impermeable muscles. It covers and the embryo feeds on both this menbran and the nutrients obtained by the mother , these pterosaurs are only capable of bringing 1 or 2 offspring because this bag cannot retain so many offspring and also makes it difficult for the mother to be looking for food to feed both herself and her young, the specimens shown are mainly piscivores and carnivores specialized in ammonites , the ammonites have managed to survive and expand as well as Other cephalopods: So there are many animals specialized in these molluscs.

A planet that has a significantly lower gravity than that of Earth, it has numerous flying organisms. Some floating plant like "balloon" organisms form large floating islands and even small continents that have sable ground which creates complex ecosystems. Amongst the numerous flying and long limbed organisms like the ribbonleg (see 3rd image) shown left that got killed by a ravenous predatory birdhead shown right. The ribbonleg usually live among the tall trees or the smaller lower level floating forest-islands. However for this ribbonleg a wildfire forced it to leve the safety of the forest to be killed by the birdhead that patrols the edge of the forest in hopes of getting an easy meal.

“Snappers are soft bodied invertebrates that are common around the oceans of Planet Nightmare, no matter the depth. They’re usually built with two shells to protect their body, opening it when feeding and closing it when something gets too close.”

“Snappers are filter feeders, feeding on microscopic organisms in the waters. Their tendrils act as a way to guide food into their mouths that are located in the middle of their body. These tendrils also act as their way of seeing the world. If they’re protecting themselves from a predator, their tendrils can sense whether or not it’s gone.”

“They come in a variety of colors, although the ones on the deep sea here tend to be very light, lacking a lot of pigment.”

“The next page is a rough sketch of how Snappers open and close. The open crevices of their closed shell allows their tendrils to stick out and keep a watch for danger.”

-The Boundary Walker

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(Hiii I meant to post these like yesterday but forgot💀but anyways, time for another silly little guy! Tbh I just looked at an apple core and went “what if they were aliens” and then this happened. Also I might make diagrams for how their inner body works n stuff but idkkk we will see)

This page is a website where you can create, share & visualize Phylogenetic Trees for your Speculative Evolution Projects, you can:

• Create a Phylogenetic Tree
• Give a Name to your Phylogenetic Tree
• Write a Description for your Phylogenetic Tree
• Upload an Image for your Phylogenetic Tree
• Make your Phylogenetic Tree Public or Private
• Add another User as a Collaborator for your Phylogenetic Tree
• Delete your Phylogenetic Tree
• Create Species for your Phylogenetic Tree
• Give a name to your Species
• Set your Species' Apparition moment
• Set the time between the Species' Apparition & its Extinction or Branching
• Write a Description for your Species
• Upload an Image for your Species
• Add Descendants for your Species
• Delete your Species

You can try it by clicking or copying this URL:
https://lifetreecreator.netlify.app/

https://www.instagram.com/p/DeVco_KnLU5/

A collection of critters -three Viciverts and two non-Ruit dwarf frog descendants- all found within one of the few remaining rainforests on Mundeng, and all of which are poisonous/venomous to some degree. Descriptions of varying length and detail are provided in the comments:

With enough selective breeding what roles could pigs fill if they where the only domestic species and what are something they’d have example pig breed to fill similar role as hunting dogs how would they look or one breed as mount or draft animals etc

IMPORTANT: I am [u/Ok-Valuable-5950](u/Ok-Valuable-5950), I just wanted to make a new account in which I didn’t foolishly leave my name to be automatically generated. I also wanted consistency in the names of my social media so it is easier to find me.

Anyways enjoy these updated, non-rushed designs PLUS lore!

The Holocene will be known as the shortest epoch at barely 1 million years. It’s end was marked by a layer of manmade materials present in sediment layers (such as concrete from ancient buildings) as well as the human-driven mass extinction event known as the Holocene-Neocene Thermal Maximum - in which humans created unfavorable conditions for themselves by destabilizing the climate and food chains that supported them.

By the end Holocene, the melting of glaciers and release of greenhouse gas disrupted the heat-exchanging ocean and wind currents. This caused extreme weather volatility that made most of Earth, save for a thin strip of temperate zones between the equator and poles, unsuitable for permanent human settlement.

And as the disruption of the North polar vortex allowed frigid waters to expand southward, commercial fishing became increasingly unviable. One such species that benefited heavily from this is the porbeagle, whose territory in the North Atlantic would expand while temperate-to-subtropical predators were unable to compete in cold waters.

Meanwhile in the equatorial regions, as water temperature at the surface reached an all-time high, dissolved oxygen levels were exceedingly low, forcing all large predators into a narrow region where they could still respire. This forced excessive competition between large predators, while their large prey were dying out or migrating to polar regions. By the end of the Thermal Maximum, large pelagic predators such as the great whites, orcas, tunas, and billfish would go extinct, leaving several vacant niches but enormous opportunity, especially for a certain shark with regional endothermy.

12 million years into the Neocene, after the equatorial regions have cooled significantly, the oceans are more productive than ever. While there are several massive predators, they are all completely dwarfed by two apex predators, akin to the megalodon and livyatan of the Miocene.

On top is the Monstrous blackfish (Monstrorca maximus), a descendant of the false killer whale that lives in small matriarchical pods. On the bottom is the Colossal white pointer (Colossolamna cuneodus), a descendant of the porbeagle specializing in hunting giant marine mammals, they are solitary but congregate during mating season.

Both animals hunt baleen whales, dolphins, seals, large fish, and sea turtles, with the blackfish preferring whales while the white pointers prefer seals. They inhabit the worldwide pelagic zone anywhere from tropical to sub-polar regions, with the white pointer venturing into colder waters far more often than the blackfish, as that is where the largest seals reside.

It occurred to me that a sapient being have a larval form not unlike a caterpillar or beetle grub would likely massively affect how its biology would form.

I am ho,wever unable to quite figure out how beyond that it would be very unlike us.

any ideas?

Saltwater Platypuses

These guys really gave me trouble. I made the anacetus first, and they were meant to become the dominant lineage, but in my sketches they ended up being a lot like whales, which was really the most realistic outcome.

Then I made the Flipperets to replace them, but the sketches for the future forms were too weird(in my opinion) and looked like some creatures from Age of Monotremes, and I don't want that.

Instead of scrapping them, I decided to use those drawings I made and added another(Saltwater Bunyip) to make a "Saltwater Platypuses" entry. So I hope you like it, and please let me know what you think of it. I tried my best.

A map i drew for a seed world by u/RecommendationFew997 that is filled to the brim with RATS and some other little creatures like crickets. Tried to make the coastlines look as realistic as possible. Very proud of it :D

An extremely ancient low gravity world aprox. 11.3 billion years old.

It has a deep mysterious fossil record and classifying it's lifeforms is near impossible. However some trends have been noted such as the many dinosaur like forms seen with the segmetoeyids (1st image:An armless dinosaur like segmetoeyid) that have eye like organs called tibirium (see 2nd image) which are analogous to ears and the actual eyes are the front flabs located at the end of their face which when viewed up close have small light sensing organs similar to ommatidia of insects. Some related groups like the diskoeyids have the "eye" in a half donut shape. Many organisms have evolved various forms of eusociality some groups like the hermaphrodite eusocialia are ancestrally eusocial and have a specialised organ called the resultor that lay eggs of their own clone drones separately from their true descendants. These organisms have two faces the main one has the eyes and mouth the secondary face has the resultor, eyes and the two sex organs. They usually have a bush like organ at the top of their main face that aids in photosynthesis.

3rd image: Miterallagis is a species of intelligent eusocialia, it's intellect is comparable to early Homo sapiens of Earth. Instead of using traditional tools this species uses a form of genetic manipulation to create what it wants. It uses the spike DNA extractor at the end of it's face to impale its victim and extract it's genetic info. It then moves to the resultor which is now located beneath the mouth and changes the genetic code creating whatever tool it needs. After a few hours of gestating it then lays an egg via the resultor which quickly hatches the young tool, it takes five days to fully mature into a usable organism.

Shown in the illustration an experienced individual creating a tool after impaling a diskid which it will eat when it comes back home.

Alright, here's one of Trevor Henderson's most well-known monsters, now reimagined as a living creature!

A relative of storks found in the United States that can reach up to 3 or 4 meters in height, they are featherless to look really lanky.

Their wings have instead become something similar to the clubbed wing Iblis, becoming large hands to grab prey, not dexterous but good at holding food.

These things communicate with loud honking which can rupture human eardrums in close range; thanks to their much more developed syrinx, they can reproduce the pacing and volume.

They can mimic sounds like prey animals, cars, human voices, alarms, music, and recreating old, distorted noises.

When hunting prey, it'll stomp down on them, pick them up with its wings, their beaks are strong enough to rip flesh and crush bone.

It's no wonder that these birds have caused impressions on humans who live in areas sharing with them, as well the earliest sightings which were first found in ancient cave paintings.

so, this is the map of my seed world.

you can seed the multiple continents (aswell as the island belt)

so, this is Rattus Terra. My ”earth” for my rat seed world.

so north viridis on the south is mainly tropical and in the north, especially far north, is very cold and is a tundra. It’s divided by a single large river, larger and longer then the largest and longest rivers on earth.

the next continents is south viridis and it is mainly tropical, however in the center it can be very hot and desert like. it has many islands near it, and is perfect for life.

there is also the island belt, the island belt is very important. inside the island belt, is the island belt sea. this sea, is almost, entirely fresh water. mind blowing compared to the rest of the seas being salt water. this is for radical changes in the rats, prawns, grasshoppers, and bees.

the final continents are indo and muhastana. muhastana is mainly hot, and desert like. tho, sometimes near the coasts it can end up as a beach and tropical. muhastana is the largest continent, larger then all the continents combined. it also has the largest lakes, which near are actually tropical!

indo is a tundra, cold, and close to arktos. the reason why it’s so similar to indo is that it’s basically into but a line and cold. even in the middle sometimes life even be sustainable there! as so we thought..

and finally, arktos, aktos and the northern sea are very cold and will be the causing of disasters.

I'm creating a seed world and it's all about rats, specifically the Norwegian rat. Also known as rattus norvegicus. Rats are incredibly smart, adaptable, and cool rodents. Which is why I calling this world, rattus terra.

Rattus terras animals are not just rats, but also sunflower bees, honey bees, prawns, and grasshoppers. The goal of rattus terra was to learn about evolution, and what better then rats! Like I said, they are smart and adaptable. With no predators, rats can fill every niche they can alongside the other animals.

The plants im seeding are apple trees, orange trees, tulips, grass, wheat, and sunflowers.

But wait! You can help too! You can share your animals for this seed world, and I will share (with credits) the rules are..

No ai

You must give a description

And what year it evolved.

And.. yeah! Be sure to check in! For now, I'll be working..

Saprolygon 
A twenty-foot carnivorous plant characterized by four, rigid towering vertical limbs. It releases a pungent odor mimicking decaying meat to lure aerial prey. Specifically either adult aeropedes searching for carcasses to deposit their eggs, or bulletflies seeking carrion to consume. When prey lands on its elevated central stamen, it gets stuck in its dense, adhesive sap, causing the four arms to vertically snap shut. The sealed column traps the prey inside to be broken down and digested in total darkness. 

Thanks a lot u/Keyotas Be sure to check them out.

A clay statuette of u/Equestrimary's Equus Digitalis as seen on the artist’s instagram and the speculative evolution subreddit.

Back View

Bottom View

Front View

Left Angled Back View

Left Angled Front View

Left Side View

Right Angled Back View

Right Angled Front View

Right Side View

Top View

If you'd rather watch than read, I have a YouTube short about them here.

The canopies of the temperate rainforests of the eastern continent of HCS-67 became free of vertebrate life after the humans left the planet (as horses and fish can't climb trees, at least, not yet), so it was up to the invertebrates to colonize them. Specifically, this was the Carniolan honey bees, and their descendants who became specialized to this environment are Apis aldarien, the forest honey bees.
While some of the trees in their forest homes are conifers (which are wind-pollinated), there are plenty of deciduous trees such as the ulmo (Eucryphia cordifolia) and epiphytic flowering plants such as mayflower orchids (Laelia speciosa) that these bees pollinate. Even the conifers are useful to them to provide the materials and structure for their nests.
Nests are built on sturdy trunks high in the forest canopy, close to the sun and therefore the flowers. Forest honey bees are eusocial, this species having usually one queen per hive. Forest honey bee workers are deep brown in color and have contrasting cream stripes (queens lack stripes). Like their ancestors, forest honey bee drones have large eyes. All morphs of this species have relatively short and wide wings.