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As it turns out, conifers are not the only trees to grow in boreal forests, or taiga. At the southernmost ends, the evergreens are mixed with such deciduous trees as: Birch Alder Willow Poplar M...
What are the minimum dimensions (length, width, height, etc.) for rings to at least be as significant (as in brightness/visibility) in the night sky as our moon? Since there are so many variables ...
In my most recent question, I asked for a material other than calcium and collagen that could form skeletons in alien creatures. My favourite answer was bio-steel; "Iron with a small percentage of ...
I have some large, megafauna level amphibians inhabiting a temperate rainforest with naturally high levels of humidity. Would my large amphibians have any problems maintaining a classic amphibian t...
Premise We have found extremophiles of the aquatic and microscopic types here on Earth, but so far large terrestrial extremophiles are the stuff of conjecture only. This makes it somewhat challeng...
Based on various methods of geological dating, particularly radiometric analysis, Earth is estimated to be around 4.5 billions years old. This is around the time the Earth's Moon was thought to be...
I came up with a pretty creative idea: An alien life form having an organ near to the brain that translates information out of the blood stream into feelings. My questions: The medium of communi...
Would it be possible for an alien species to have liquid nitrogen for its blood? What would be required for that to work? What kind of environment would it need to exist in?
This is my first post on these forums, sorry if I've accidentally overlooked any rules or etiquette. Please let me know if more detail is necessary or would be helpful. This question is about a spe...
I am working on a story. i want to know if is it possible for creatures like snake, eagle, vulture to stay on an altostratus cloud without falling down. if possible the limits on how much force and...
For story purposes, I'm trying to determine what would happen if a small moon-sized object crashed into an unmovable barrier surrounding a planet. My goal here is to eventually get a ring surroundi...
On an Earth analog, assuming all the selective pressures necessary are there, how large can a flower's bloom evolve to be? I'm referring the the vegetative part of the flower, the petals! I have no...
The world I'm building relies on the fact that the whole population is sterile, and all babies are conceived in vitro. They do not have bellybuttons anymore but they still have genitals, and do not...
Assuming there were no extinction level threats to the dinosaurs, and they never fully died off (and survived the following ice ages), how would this affect the evolution and technology use of huma...
A large comet is quickly approaching my fantasy world. Its impact will spell doom for all life on the planet. Fortunately, there are mages on this fantasy planet who possess a magic capable of shat...
Lately, there has been speculation of what would happen if all the untapped oil, by the handwaving powers of the gods of television and money, disappear overnight. It has been explained, in varyin...
Premise By definition, an ectotherm uses environmental heat sources to regulate its own body temperature. The most common forms of body heat regulation that we observe from ectotherms here on Eart...
In a certain world there is a ruler who runs a very powerful country with an iron fist. A faction of oppositionists has been giving her lip and has made some mean comments implying she brings the c...
There is a website called the SCP Foundation which features a variety of creatures, objects and phenomena that border on the horrifying to the just plain weird. This one straddles the boundary betw...
Imagine a sessile, multi-cellular slime like organism (or whatever necessary) awaits in a burrow or along a tree branch. Then an animal lands in its ooze and is trapped and soon paralyzed by its ve...
Is it plausible for a species of ant that inhabits a mangrove-like marine environment to have their abdomen evolve into a tail-like appendage for swimming to move from tree to tree to forage?
My new superhuman, Gravero!, has just entered combat. He's a new superhero with a lot going for him! He's resplendant in his dashing tights, his cape flows in exactly the right direction when he ...
I'm building a story around a newly discovered kind of deep-ocean octopuses whose ink contain "parasites" which act as acid in organisms. These ink parasites can be used as a weapon of mass destru...
I'm trying to investigate the theory behind this phenomena. I have found answers to creating eternal storms but nothing specific to my world building. I'm looking at a future earth where any known ...
My planet, is roughly as big as Earth, but has two moons. The first moon, Luna, is essentially the same as Earth's moon, but the second, much, much smaller moon, Selene, actually orbits Luna. Sele...
