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Say you somehow invented 50 thousand nanobots that are the size of medium sized bottle caps. Each are capable of hovering for a limited amount of time but do recharge with both solar energy and plu...
Contrary to popular belief, Unicorns are not related to horses but instead are descended from the Siberian Unicorn. Over time: their fur became whiter they became slightly smaller they have an...
Consider this a remake of my Why might a group of insects evolve to resemble humans? post. Fairies are a common trope in fantasy works some characteristics of fairies and their associates are: Fa...
The core concept is a bastardized fusion of utility fogs, and the magical barriers of witches from the anime Puella Magi Madoka Magica. Utility fogs are swarms of 100 micrometer robots, foglets, t...
male Wyverns collect shiny objects in their dens to attract mates it quite common for Wyverns to get into territorial fight. Now Wyverns are capable of breathing fire but they are also covered in f...
Is it possible for there to be a planet where no animals, only plants existed? What evolutionary reasons would cause this, if possible?
I am designing a planet that humans can live on for a few tens of thousands of years, while they are hiding from some sort of inter-galactic police force (or whatever). Therefore, it's important th...
(Edited for focus; see history for previous version) Following up on this question, let's say I have a "coastal" mesa (relatively flat, high land not far from an ocean) with taller mountains behin...
I have a planet where I want all plants to be blue and glowing. I was thinking that they could use something other than light for energy. I want the plants to always glow. The atmosphere is basical...
This is a submission for the Anatomically Correct Series The orang pendek is a cryptid that reportedly inhabits remote, mountainous forests on the island of Sumatra (likely evolving from orangutan...
I found a way to ensure that even if either the Japanese Self-Defense Force or the U.S Army invades my fantasy world, its inhabitants would still have a fighting chance. Utiltiy Fog Hall thoug...
Phoenixes are a unique type of wyvern not only due to their colorful feathers (which resemble flames) but also how they reproduce. Phoenixes lay 7 eggs which require a lot of heat to hatch. Unfortu...
I am creating a humanoid species for my setting and I thought of the idea of "‹"‹making it that can rotate its joints with a 360 angle and can bend its limbs in any direction. Sort of like owl's 27...
I think it will be possible in the far future to take a single person`s cells, genetically enhance and change them using genetic engineering and synthetic biology using new genes, and put it in a 3...
Humanity has discovered entire worlds filled with creatures that would question their understanding of biology, but one creature, if it can be called, has brought up many many questions. Appearanc...
I recently look at a question on this site that questioned if a "world tree" is feasible, Would a 'World Tree' be feasible in real life?. If i remember correctly, it stated that one way to distribu...
I'm wondering whether it would be possible for humanoids to evolve from bears. bears share many characteristics with primates such as being amazing tree climbers and having the ability to use too...
I want to create a world where humans can live outside (perhaps with some protective clothing) but where very high winds exist in almost all potentially habitable areas making life outside impossib...
How could astrophysical jets, emitting matter from black holes be used as energy sources by a space-faring nation? How could they be able to collect and use this form of energy?
I am writing a story, in which I would like to have three locations within about a half hour to an hour driving distance (assuming population, road systems and automobiles on par with the contempor...
Can a world exist where the atmosphere is actually thicker at some altitude than at sea level? If so, what mechanisms would be involved?
I am making a fish folk race, and I want to figure out if tattoos/ piercings could be possible. My ideas for piercings would be on the flesh itself or on the fins. If they had piercings in these ar...
I am considering a mid to large sized creature, the loping quhambo. Maybe eight to ten palms at the whithers and maybe five stone in weight. It is a proboscidean mammal of some sort, though quite ...
In my military sci fi story in which a squad of private contractors have to contend with hostile creatures reliant on scent and mechanoreception to hunt, I wanted to keep the sci-fi 'hard' and plau...
While reading this question about how non-primate mammals could develop a bipedal stance, I became curious about the broader reasons why animals could evolve to walk on two legs. I found some insi...
