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829 evolution questions.

I have been thinking about which mutants from Marvel are most realistic and Zeitgeist comes to mind. Long story short, his power is weaponized acidic vomit. He can spew it a few meters away at will. ...

If Earth instantaneously reverted back to when the only organisms were small microscopic creatures in the sea, would evolution happen the same exact way creating the same animals and species? Was ...

I know it looks like a lot of topics but hear me out here. I am not talking about some nonsense explanation for this ability but more of an evolutionary process. Imagine that for numerous ...

Cerberus was a three headed dog, commonly depicted with a collar and tail of snakes. Such an organism is quite difficult to justify, but how can such a creature appear that way? Is there a realistic ...

Okay, following my previous core question, after the apocalypse, one of my sets of survivors in this setting, the Usnay, managed to live in a fleet of ships for over a thousand years. This is ...

So far, we see an alien life form depicted based on earth type of animal kingdom, we see an insect like Zerg, a humanoid grey alien, etc. However sometimes we see alien like Guardians of galaxy's ...

Usually, forms of life are associated with organisms like humans, plants and animals. The probability that such can evolve in an environment is very low due to the many constraints that have to be ...

The Hoatzin is a jungle bird whose only remarkable trait, other than looking fabulous, is that their wings have fingers. Is it possible that these wing fingers could evolve into arms? What about ...

The Drow from Dungeons and Dragons are a race of elves with dark skin and pale hair that live mainly underground. How could these elves develop such a coloration when they live underground, away from ...

I had an idea for a humanoid species that has a significant number more female births than male births, how would this trait have provided enough of an advantage to allow the species to survive to ...

So, on the planet Qualis, a reptilian species, known as the modern Qualians, evolved about 200,000 years. Before that, most fighting was down with claws and teeth, and the Qualian ancestor that had ...

In an alternate Earth, coral has been extinct for over 400 million years. In their place were the following: Bivalvia (clams, oysters, mussels) Cirripedia (barnacles) Canalipalpata (bristle-foot or ...

In a brand baby spanking new world I am building, appropriately named Escargard, punningly named by the AndyD273, mollusks have become the dominant form of life. Resulting in aliens similar to those ...

Why this question is different from existing questions... The closest question to mine is Anatomically Correct Cerberus. It is clear from the answers to that question and indeed it's axiomatic to the ...

Premise Suppose a cult has been receiving special "visions" of doom far off into the future. Even though this prophecy of doom is not impending in the here and now, these cultists are very long-term ...

Note: this is not a duplicate of Anatomically correct Giants or What would be the tallest possible height for humanlike creatures in earthlike conditions? because my giants are far from humanoid. ...

I'm designing a world with a humanoid race, which has two sexes, male which is analogue to human male, and hermaphrodite which is analogue to human women with additional male reproductive organs, like ...

We know that as a planet increases in size, its surface gets covered by oceans (more water is captured by gravity and shape is more spherical). Therefore, a planet larger than Earth can not have a ...

In some fantasy works there are races, like some interpretations of harpies and mermaids, among others, that are all female, and need to seek out other races, like humans, to reproduce, the daughters ...

Let's say there exists an Earth-like exoplanet which orbits a normal star, with a similar process regarding the evolution of life on earth, yet the star became a red giant during said evolution. ...

I am currently working on a world with a "human" species. The planet is similar to ours and these "humans" would evolve in a similar environment. I know that bio-luminescence appears mainly where ...

This is part of a series of questions about biological hydraulics, the fist one being here. My tetrapods have hydraulics in the thighs of their hind legs. To push or pull fluid from closed chambers ...

What feature could more feasible evolve in a humanoid race, related to humans or not, that could be mistaken at first glance and/or conflated into by word of mouth exaggerating things, wings?

For example, think of our species. We have members that embrace trans-humanism and tribes that appease their great-grands with offerings. The two are different and very unlikely to be related, thus ...

An integral species in a large worldbuilding project I'm working on right now is based around the concept of extreme agility. The species shall be a megafauna (Is that grammatically correct - "a ...

Life had been good for a certain class of tetrapods. They evolved two layers graphene in a specialized collagen creating a relatively thin yet seemingly impenetrable hide. All of their natural ...

Humans (and mammals) have 2 lungs, one right and the another left. The right lung have 3 lobes and the left have 2 lobes because in the "third" there is the heart, so the right lung is bigger than the ...

In my fictional world I am planning to have a humanoid species living on an arctic continent, and I am wondering what type of biological adaptations a humanoid (as in, anatomically modern humans or ...

In the fantasy culture it's not uncommon to find Giant spiders with the upper body of a human. There are many variants as the spider body having only 4 legs and the upper human body have 2 additional ...

I have a planned species of aliens that have many commonalities with longhorn crazy ants (cooperation with colonies of the same species, can live in a large variety of environments, and have the ...

For my group of alien tetrapods, I would like to have them evolve a sort of built in protection against the elements and other organisms. While researching, I came across information on graphene, and ...

I was thinking of a lifeforms that would have a brain more similar to that of a quantum computer than an ordinary brain. I was thinking the brain would use something similar to qubits that could be in ...

The Eternal Arms Race Between Weapon and Armor This world has a race of giant crabs who have developed armor sufficiently strong that the top predator's teeth can't puncture the armor. In response, ...

My race of arboreal humanoids has limb proportions very similar to those of a human apart from their slightly lengthened arms. They are already quite strong, and I'm hoping to add to their ...

The Asari are one of the iconic races from the popular Mass Effect games and universe, and while the image above isn't from any official media, it's close enough to what they look like. Besides their ...

Let's say that, since the dawn of time, any time an organism has died, it has dissipated upon death. With no decaying matter to fertilize or produce future plants/animals, would life have adapted? ...

Does the fact that it's a dwarf galaxy affect the chances of life evolving? I'm interested in how the closer proximity of other stars might affect the surface of the planet and it's ability to grow ...

Zerg Overlords are flying alien creatures that aid their broods by managing lesser members of the swarm, transporting units within their carapaces, and alerting a hive about any danger they perceive ...

Spoiler Alert At what levels can any of this be realistic? And how? In the real world : Can any of them develop (evolve) naturally as a species? How many calories would they need daily to ...

There have been countless online articles that go into painstaking detail about the implausibility of Godzilla existing in real life. But, let's just assume that a creature like Godzilla naturally ...

So, in my last question, I asked "How could an animal run fast using blade-like feet that sink into spongy ground?" The premise was that on my planet, forests grow not from soil but from spongy, ...

A submission for the Anatomically Correct Series. The plant genus Mandragora as we know today are nightshades that contain highly biologically active alkaloids that make them poisonous, with their ...

Bonobos tend to solve disagreements through sex instead of violence, what might have caused this to evolve, or something similar to evolve in a sapient race of humanoids?

Many mythological humans vary in depictions. Let's use Trolls from Scandinavia as an example. Some are said to be giants compared to humans (I'd imagine twice the height), and some, like Danish Trolls,...

I have a desert world with high tectonic and volcanic activity. To the point where an ashfall is not an uncommon weather pattern. The ash itself would be very fine fertile ash. The ash also has a ...

Demons have been a staple of multiple religions for thousands of years, just like angels. While some of the points brought up in the Anatomically Correct Angels post (and other posts on flying ...

For my a story I'm writing, I have 3 species that are from the same evolution line; Kitsune's, Tanuki's, and Bakeneko/Nekomatas. All three are familiar in the lines of shapeshifiting animals. Their ...

I am working on an extraterrestrial class of tetrapod-like organisms. To give them an evolutionary advantage, I am considering biological hydraulics to supplement the muscles in the hind legs. ...

Could we humans develop psionic powers in the future? Aside from what is common in science-fiction and fantasy literature, it doesn't seem reasonable that our bodies would develop powers like ...

Imagine a world where a creationist situation holds: God (or an alien master species, if you prefer) created all the species you see in the world today, and there will never be any others. Are there ...

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