Posts tagged xenobiology
How would it switch between if endothermic and ectothermic and in between and how would it be able to create different temperature in specific areas in the body?
I want to write a SF story where humans discover that a species of ET has caramel instead of blood and I need some biological information in order to develop it in a realistic way. For my story, i...
As the title: I want to know what kind of organs or modifications need for plants like tree to gain energy from lightning or electricity (and still fine or safe or alive of course). Since I have a...
I have this creatures which were hiding underground for millennia. They are, from the beginning of their history, exclusively nocturnal. They emerged back on surface after moon disappeared (irrel...
So, I've decided that in my fantasy fiction, I want to have Megabara riders. Massive Capybaras, being ridden into a battle. I've done some basic research and I came across this extinct species tha...
In my alternative universe, Atlantis was a real city that existed, although it wasn't called Atlantis or founded by humans. Atlantis or rather, Dosham was a city on an isolated landmass in the nort...
just suddenly struck by curiosity, i vaguely remember that big quadrupedal or hexapodal (if you count the wings) animals cant fly well basically. I dont remember why, but i think it was related to ...
Could a planet with the size and characteristics of the Earth orbit a gas giant and would the earth-like moon be able to maintain its orbit if the gas giant went rogue and was launched from its hos...
Would it be possible for aliens that originated and evolved in a planetary system beyond the ring singularity of a rotating black hole to send individuals out into a normal universe to colonise it?...
The Apex predator of the Sea of Grass biome from planet Andromeda is mostly bipedal, but capable of facultative quadrupedalism, it has long limbs, powerful claws on its hands and is roughly the siz...
What possible evolutionary adaptations could you foresee in the sensory organs of wildlife in an environment beset by a nigh-permanent sandstorm? e.g. in the case of vision, ways to protect the ey...
The boom-bust cycle answer I took for my question: Sustainability of Regular Global Wildfires due to Oxygen Rich Atmosphere pends on the atmosphere being rich in oxygen but poor in CO2. I, however,...
In an alien world, due to changes in the ecosystem animals that were once mostly arboreal started having to spend more time in open plains, adapting to fill a new niche of grasslands/bush eaters an...
So, I'm creating a fantasy setting, and because why not, I decided to have giants. Not giant giants, just roughly 2 times the height of a human. Now, because physics is dumb, a giant species would ...
I'm basically designing a quadrupedal digitigrade alien, which has evolved from a predominantly arboreal animal into a predator with more cursorial adaptations, capable of running fast, but still b...
If we could replace DNA, RNA and the ribosomes in our cells by their mirror image versions, then everything would work in the same way, except that the chirality of all molecules would have been in...
My non-magic fantasy world has a species of hominid that lives in a huge and wide sierra of mountains. If they had split off from the (now dominant) human species a couple million years ago, (say a...
so i want to create a monster that dwell or fly inside thunderstorm as their defense mechanism, though they do goes down to get food, i want to know what method or modifications need for creature t...
On one hand, heavier gravity would make flying more difficult, owing to greater weight restrictions on the flying creatures' bodies. On the other hand, the greater density of the atmosphere on ...
I'm working on a bioweapon created by an extraterrestrial agent. The being is 2.5 m tall, humanoid, digitigrade, intelligent and mostly predatory. However, it does not require water, food or oxygen...
I am creating a science fiction worldbuilding project, in which humanity has colonised distant exoplanets. One such planet is a Venus-like planet in the sense that it has a perpetual cloud cover, a...
We've found a habitable planet orbiting a red dwarf star some light years away and conditions are Earth-like enough that a colonization project was initiated. Before any humans landed on the planet...
One of the respondents in this thread suggested a 7-sex system with the following features: An idea I came up with years ago was a variation on the male/female/carries-offspring idea. This spec...
In the deep, outer reaches of our galaxy, there is a rogue gas giant which, due to an unfortunate event, was flung from its native orbit into interstellar space. It has a mass 12 times that of Jupi...
First time posting here but I would like to get some help with an issue I have. I have a planet that has 30% more gravity than earth. I have terrestrial animals with an exoskeleton, they stand at ...
Genetic chimerism is a condition in which a single organism is composed of cells with more than one distinct genotype. Elves inhabit this world, but do not possess magic in this reality. Instead, t...
In some birds especially owls, we can observe a structure called facial disk, which is mainly composed of feathers and helps to direct sound to their ears. While being more common in owls, adding u...
as the title, my question is how big a pelican like creature with its pouch mouth need to be in order to carry grown up human and still fly. since as far as i know hollow bone is to fragile for hu...
This is a post-apocalyptic setting I'm working on. The world has been overrun by invisible monsters from another parallel universe. They can be heard and smelled, and they can form claw prints on t...
So, it is relatively common to have various creatures grow crystals. This generally happens outside of the body (at least partially), but internal crystals aren't unknown either (see for example, e...
I want to create a glutton creature that can open its mouth wider than the prey item like snakes do, but also can bite through that big hard object and even chew it; this creature doesn't swallow p...
Is there a way for a species to essentially become a living incubator of sorts? Not the other way around, as in Plausible ways for the alien species to be able to impregnate every and any species?,...
Amino acids, the building blocks of proteins and, therefore, one of the key components of life as we know it. There are many amino acids in nature, but they all stem from the same basic structur...
I've seen several people independently come up with the idea of three or more sexes where one sex is responsible for brooding the young (pregnancy, pouch, feeding, something along those lines) but ...
On plain Pilar forest biome of planet X, you have mostly 3 types of vertebrates: those who burrow under the ground those who run through the widely separated trees those who live above ground le...
I understand that one does not simply scale up the smallest of creatures to the size of megafauna without violating basic physiological constraints like the square/cube law, among others; so what w...
There has been materials science research on materials that can harden and soften at need. In nature, we have the example of the sea cucumber, which can go from a squishy compressible state to a r...
I don't know much about hurricane/cyclone and how to created it (nor know the difference much, so bear with me if i make mistake), so I want to know what kind of plant organs or ability need to ach...
What modification would a plant "” especially tree "” develop in a world where everything is made of sugar, caramel, cake, syrup, soda, etc.? Think of something like Willy Wonka's Chocolate Factor...
so i want to know What organs or modifications are need for a biological creature to develop lethal force as a pooping machine gun. something like how skunk spray their stinky odor as defense mec...
So in my world there's a creature as big as a common rodent or as big as a rabbit in size. They live in packs, usually burrowed, but occasionally come to surface to get food. The alpha male is task...
Shamelessly inspired by this question, where a race was capable of counting only 0, 1 and "˜many', I have designed a yet more extreme race!! The Continuuoids are a pretty complex race. They can so...
(I'm new here, so if I'm doing something wrong please let me know) I have an idea for a world where most fauna (and potentially flora) have floating, disembodied limbs that hover in place. Think R...
This is another question that seeks to provide assistance in the design of ''Eosi Humans'' an alternate human species which makes up the population of my fantasy world ''Diggoran'' ( Pronounced Die...
I am workin on an ecosystem based on life within the rings of a planet. I will create creatures from single celled organisms, to algae/ lichen, plankton/worms and scales of predators leading to lar...
The species I have created, are a species of gliding reptiles. They look primarily like horned lizards and measure up to 20 feet long, 7 feet wide, and 5-6 feet tall. however, they posses wings tha...
One thing that is fairly common amongst nearly every macro-scale living thing on this planet is the brain. The brain controls when creatures breathe, move, talk, etc., but the brains of said living...
JordanTheCynic here again with another question relating to my Eosi Humans. Most of my questions are NSFW by the way so just a fair warning. I made a post in the past which discussed how Eosi h...
I am writing a story that has insects the size of humans, but I am having a little trouble with the biology. When you look up why there are no large insects on Earth, the most popular answer is th...
Lets say you have a planet called...Galileo. Galileo has a large amount of biodiversity, with bacteria, plants, fungi, and animals. The animals are what I'd like to focus on today. Unlike Earth wit...
