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For questions about the long-term change of a specific species, type of creature, or trait, usually through the process of natural selection and reproduction. Ideal questions focus on traits, not entire creatures. Consider also [creature-design].

5 votes
Accepted

How plausible is a photosynthetic parasite that targets animal hosts?

I think evolution could handle this, given enough time and the right pressures. Here are the steps, in brief: Start with an existing carnivorous plant like a butterwort or bladderwort. …
cobaltduck's user avatar
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27 votes
Accepted

Could elves revolve their ears to listen to sounds?

If human and elvish evolution diverged at or near this point in the tree of life, it would be entirely plausible for the elf branch to retain this trait. …
cobaltduck's user avatar
  • 8,605
4 votes

Evolutionary Advantage to Extreme Longevity

there was some event in the ancient elven past that made it part of their mores to not have as many children (for example, due to reduced resources to have to share with an increasing population), then evolution
cobaltduck's user avatar
  • 8,605
18 votes
5 answers
2k views

How to justify digging claws and opposable thumbs in the same being

How would evolution handle this? I can accept very broad explanations, I prefer to paint my world with a wide stroke, if not with a broom. …
cobaltduck's user avatar
  • 8,605
3 votes

Could a world where two neigbouring countries, only one of which uses 'magic', exist?

Depending on where you want to go with this story, I would try a divine-intervention angle. In a time long before anyone can remember, one people blessed by the Gods, another cursed. One ruled …
cobaltduck's user avatar
  • 8,605
3 votes

Anatomically Correct Tomte

I think some appropriate mix of an existing small primate and the right accidents of evolution could easily have produced the creature we want at least in terms of size, intelligence, and personality. …
cobaltduck's user avatar
  • 8,605
12 votes

Planet of the Aves: First Steps

The meteor missed. The end-cretaceous mass extinction event didn't happen. Velociraptors and their friends lived on. They continued to evolve, to be large, and to eat whatever they wanted. We now …
cobaltduck's user avatar
  • 8,605
4 votes

Planet of the Aves: Quadrabirds

Your quadrabirds don't have to loose flight to have a walking fore-limb. Another answer already mentions that some groups of pterosaurs folded their wings when on the ground and used them for walking …
cobaltduck's user avatar
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1 vote

How would a human species evolved to survive high radiation take a new nuclear strike?

You've heard the expression whatever doesn't kill us makes us stronger? Well, in some cases, what does kill a few of us, leaves the average of what's left of us stronger. Consider a couple real-life …
cobaltduck's user avatar
  • 8,605
9 votes
3 answers
456 views

Civilized Dolphins and their Record Keeping

On the Life Ball of my fantasy stories, a particular species of delphinidae- I call them black dolphins- have evolved and advanced at least as much as humans and other intelligent races. A prior quest …
cobaltduck's user avatar
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5 votes
6 answers
460 views

How might the pterosaurs survive an end-cretaceous-like event?

Cobaltduckworlda has had somewhat of a similar biological past as earth, but not exactly. As examples, sentience has happened multiple times, and not just in primate-like species. Beasts that didn't …
cobaltduck's user avatar
  • 8,605
18 votes
2 answers
2k views

Anatomically Correct Boar Troll

Where would this creature's evolution have split from the real world? What living species might it best resemble (i.e. ox, sheep, warthog, etc.) …
cobaltduck's user avatar
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7 votes

The Galaxy has been colonised but why the big feet?

Schmell gets the snow. Man, does it get the snow. You think it snows where you live? You should see the snow in Schmell! To walk around on all the deep, white, frozen precipitation, it helps to be …
cobaltduck's user avatar
  • 8,605
15 votes
Accepted

Anatomically Correct Harpy

Going from a strict carnivore to a more opportunistic feeding habit will take several generations, but it has happened in evolution before. …
cobaltduck's user avatar
  • 8,605
3 votes

Caste in non-Eusocial animals

I think you may have been slightly mixing cause and effect. In your example insects, every egg the queen lays has equal potential to become a worker, drone, or future queen. It all depends on how th …
cobaltduck's user avatar
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