Posts by SealBoi
Before I start, let me say that I know that what animals think and feel and whether they do it is a highly, highly debated topic. But, for this question, let us just assume that many animals think ...
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 ...
On earth, the skeletons of Osteicthyes and all their descendants are made of a mixture of collagen and calcium. We can do this because Earth contains food sources for all these animals containing v...
The current worldbuilding project I have is going to be detailed - very detailed. It's about the life of an alien planet called Nemo 4, and I want to chronicle the evolutionary history of that lif...
On Earth, all plants are green because they contain the pigment chlorophyll, which photosynthesizes by absorbing all light except green light. However, it is quite possible - if not likely - that ...
The 12 planets in my solar system orbit the G-type star of Nemo. It's about nine-tenths of the size of the sun, and has a stellar luminosity of 0.67 L☉, a diameter of 1.28 million kilometres, a s...
Lithotrophy is a phenomenon known from microscopic life, where an organism converts inorganic substances, usually minerals, into energy. So, we know that a single-celled life form can do this, but...
I've recently decided to revive an old project of mine involving an alien planet. Unfortunately, however, I was not as good a worldbuilder then as I am now, and that's having some consequences. Ba...
Note: an edit has been made to the main question at the bottom A couple of years ago, I had a worldbuilding project which I have recently revived. I was relatively new to worldbuilding back the...
In my last question, How large could my sea serpents be?, I asked what length would be a) possible and b) necessary for a whale-eating sea serpent. My sea serpent is a constricting predator* in a c...
EDIT: (Important) M. A. Golding commented that the regalecid method of locomotion would be unfit for a constricting predator, so I have completely redone the taxonomy of the sea serpent. They are n...
Edit: I've written an answer of my own now, and I'd appreciate it if any of you informed on the subject of evolution could review it, then inform me of its plausibility, via the comments (Of the a...
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. A...
This is the second question in a series about my ongoing worldbuilding project, which seeks to explain the evolution and biology of various fantasy creatures. The first one was: Is petrifying visi...
Note: this question is not a duplicate. The accepted answer to the question "Anatomically correct Medusa" explains the petrifying vision via calcifying toxins spat from the snake hair. This a) woul...
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 m...
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, ...
In my fictional planet, forests grow not on soil, but on vast spongy mats of fungi. Traditional Earth-like feet would struggle to get grip on the squishy ground, so most megafauna taxa have feet li...
I was thinking of an idea for an alien species in a hard sci-fi universe, and I wondered if a species, with the same amount of emotions as bottlenose dolphins (Except for fear), survive as a specie...
Imagine that, in the near future, pollution, overpopulation and war leads to a massive extinction where almost all chordates, some invertebrates and many plants are wiped out. Small, resilient plan...
So, in a post-apocalyptic setting, when humans have gone extinct and their cities fell into ruin, I was wondering what animals might evolve to conquer the ruins of our cities. Notice: I know that ...
Okay, now this question is a bit random. But, I'm planning for a possible book project about a 2019 expedition to an undiscovered island. The island is near the northern tip of the Ninetyeast Ridg...
I've been wondering about insular dwarfism, and would like to know if it only affects certain animals (Since some animals grow larger upon colonizing an island, often due to the absence of predator...
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