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r/SpeculativeEvolution

106,571 subscribers
Where evolution meets science fiction and art.

Speculative Evolution (also called Speculative Biology and Speculative Zoology) is the envisioning of fictional, but scientifically possible creatures that could have existed on an alternate Earth, or might actually exist somewhere on another planet or in the deep sea.

Notice: This subreddit is not actively monitored, so the posts here are only a small subset of what exists on reddit.

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Discussion Question Evolutionary Constraints Far Future [OC] Alternate Evolution Spec Project Fantasy/Folklore Real World Inspiration Alternate Evolution Alien Life Paleo Reconstruction Request [Non-OC] Fan Media Artwork Seeking Critique Question/Help Requested Terraformed World
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to r/SpeculativeEvolution by RandomFellow3832
3 months ago
What groups of species do you think could develop intelligence like us?
Question
to r/SpeculativeEvolution by External-Grade1976
1 year ago
Can B-type stars that experience a mass transfer support complex life on a hypothetical super earth in the habitable zone?
Question
to r/SpeculativeEvolution by External-Grade1976
1 year ago
Could Complex Alien life develop on a Hycean Planet?
Question
to r/SpeculativeEvolution by External-Grade1976
1 year ago
What would complex life look like on a habitable super earth that’s 3.00 earth masses?
Question
to r/SpeculativeEvolution by throwaway2343454564
1 year ago
Preview thumbnail for I hope this fits here- Ligershark! image
I hope this fits here- Ligershark!
[OC] Alternate Evolution
to r/SpeculativeEvolution by MickAmaro
5 months ago
Help with Speculative/Xenobiology adventure series.
Seeking Critique
to r/SpeculativeEvolution by Single-Maybe-318
1 year ago
Dougal Dixon reprints anytime soon?
Question
to r/SpeculativeEvolution by SecondWeirdestWeeb
1 year ago
my project and a few questions
Question
to r/SpeculativeEvolution by scholcombe
4 months ago
Farscape
Discussion
to r/SpeculativeEvolution by scholcombe
4 months ago
Partnership
Question/Help Requested
to r/SpeculativeEvolution by bdaydragon32
11 months ago
Preview thumbnail for Health and care guide for Human-pig hybrids in their way from infancy to puberty (Parts 4&5 plus radiography) image
Health and care guide for Human-pig hybrids in their way from infancy to puberty (Parts 4&5 plus radiography)
Alternate Evolution
to r/SpeculativeEvolution by Xx_BB-IMP_xX
1 year ago
Pokémon x SpecEvo
Fantasy/Folklore
to r/SpeculativeEvolution by bdaydragon32
11 months ago
Preview thumbnail for Health and care guide for Human-pig hybrids in the early stages of development (Parts 1-3) image
Health and care guide for Human-pig hybrids in the early stages of development (Parts 1-3)
Alternate Evolution
to r/SpeculativeEvolution by johnbrackentan
1 year ago
Stem Animals - Fractal Symmetry
Evolutionary Constraints
to r/SpeculativeEvolution by thecatalyst08
3 months ago
Preview thumbnail for Thoughts on this map? Specifically in its geography and climate (climate description in the comments) image
Thoughts on this map? Specifically in its geography and climate (climate description in the comments)
Alternate Evolution
to r/SpeculativeEvolution by Opteuyidk
9 months ago
Preview thumbnail for Finger boy from Sam o nella as a real creature credit to u/brasil89 for the art image
Finger boy from Sam o nella as a real creature credit to u/brasil89 for the art
to r/SpeculativeEvolution by LordSnuffleFerret
1 year ago
Question - The Golden Rule
Evolutionary Constraints
to r/SpeculativeEvolution by LordSnuffleFerret
1 year ago
Hold it, I can't see in here (sound of platypus been taken out)
to r/SpeculativeEvolution by NealJeff1
11 months ago
Preview thumbnail for Considering that Pachycephalosaurs were the only Ornithischian to become large and quadrupedal, you think with more time we could have gotten giant quadrupedal bisony Pachycephalosaurs? image
Considering that Pachycephalosaurs were the only Ornithischian to become large and quadrupedal, you think with more time we could have gotten giant quadrupedal bisony Pachycephalosaurs?
Paleo Reconstruction
to r/SpeculativeEvolution by thecatalyst08
3 months ago
Preview thumbnail for How would the inland sea (filled in grey) affect the climate of this continent? If it matters, the small island in the large lake toward the south is on the equator image
How would the inland sea (filled in grey) affect the climate of this continent? If it matters, the small island in the large lake toward the south is on the equator
Terraformed World
to r/SpeculativeEvolution by thecatalyst08
3 months ago
Would it be worth it for a cat species to evolve bear-like traits?
to r/SpeculativeEvolution by JoeyBad_SaladTour
11 months ago
What if we already have aliens
Alien Life
to r/SpeculativeEvolution by Lochrin00
4 months ago
Simultaneous hermaphroditism in mammals.
to r/SpeculativeEvolution by Lochrin00
4 months ago
Recursive Metamorphosis
to r/SpeculativeEvolution by thecatalyst08
3 months ago
Why hasn’t an animal evolved or adapted to prey on humans?
Real World Inspiration