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Speculative biology is simultaneously a science and form of art in which one speculates on the possibilities of life and evolution. What could the world look like if dinosaurs had never gone extinct? What could alien lifeforms look like? What kinds of plants and animals might exist in the far future? These questions and more are tackled by speculative biologists, and the Speculative Evolution welcomes all relevant ideas, inquiries, and world-building projects alike. With a member base comprising users from across the world, our community is the largest and longest-running place of gathering for speculative biologists on the web.

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The Habitable Zone

Regular Forum Nereus
A xenobiology project based on an extrasolar planet twenty light-years away. Alien life is dominated by tripedal nereids exhibiting secondary bilateral symmetry.
Nereus 1.5 Jun 19 2017, 12:49 PM, By Empyreon
Topics: 20 Replies: 2,004
Regular Forum Priapus Prime
Parasky's exobiology project featuring radially symmetrical life on a watery, Venus-like world.
Civilization on Priapus Prime Oct 29 2015, 02:24 PM, By Ànraich
Topics: 4 Replies: 552
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The Habitable Zone
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Avatar
New Trailer new creatures!
Oceaniis 57 1,814
Nov 14 2009, 01:54 PM
Last Post By: Holben
Hot Topic
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Strangers in the Dark
a.k.a. Graes
Canis Lupis 38 1,264
Nov 7 2009, 11:11 AM
Last Post By: Holben
Hot Topic
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Dream-World
Planet from my nightmares
KayKay 69 2,815
Nov 2 2009, 02:31 PM
Last Post By: Ddraig Goch
Hot Topic
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Rilln
A Sequal to Snaiad
Canis Lupis 48 2,366
Oct 21 2009, 09:13 PM
Last Post By: Canis Lupis
Regular A link to a university level world building course
Paul_de_Vries 4 595
Oct 14 2009, 07:06 PM
Last Post By: Ànraich
Moved Moved: Favorite Nereid
Regular Draconeia
An alien planet I made
sam999 2 494
Oct 12 2009, 02:16 PM
Last Post By: Holben
Regular
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Species Mutualism
Megatherium pachydermus
Ddraig Goch 19 1,373
Oct 11 2009, 02:41 PM
Last Post By: Ddraig Goch
Regular Animorphs
How would they work?
sam999 14 518
Oct 10 2009, 08:20 AM
Last Post By: sam999
Regular terra zora
a project (read: distraction) of mine
Nevermore 7 558
Oct 3 2009, 10:37 PM
Last Post By: colddigger
Hot Topic
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My exobiological project
Discussion for my project.
Saxophlutist 29 2,041
Oct 2 2009, 03:29 PM
Last Post By: Holben
Regular Atshara
basically, a wet Venus
Canis Lupis 14 976
Sep 30 2009, 09:08 PM
Last Post By: Canis Lupis
Regular Metaphyta a.k.a Plant World
Venatosaurus 8 927
Sep 28 2009, 04:53 PM
Last Post By: Venatosaurus
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Kali
My new exobiology project
Ànraich 24 1,385
Sep 27 2009, 09:31 AM
Last Post By: Holben
Regular Tesla XII
11 759
Sep 24 2009, 04:38 PM
Last Post By:
Regular Faces of a lost world
The extinct ecology of a now gone world
ItHasTeeth 8 852
Sep 23 2009, 04:31 PM
Last Post By: Iowanic
Regular Suffusca
11 billion years of Alien life
Rick Raptor 13 1,412
Sep 20 2009, 04:39 PM
Last Post By: Rick Raptor
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Venusian Wildlife
Yorick 27 1,821
Sep 19 2009, 08:42 AM
Last Post By: Holben
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evoluitiod 3
yet another hypothetical alien planet
Xenophile 25 1,785
Sep 18 2009, 09:07 PM
Last Post By: Xenophile
Regular Expedition
Sliver Slave 8 856
Sep 14 2009, 06:45 PM
Last Post By: sam999
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Can you decode an alien message?
Are part of an elite 0.0001% ?
Xenophile 33 2,371
Sep 14 2009, 04:59 PM
Last Post By: Empyreon
Regular Planet Furaha
The Dodo 8 2,347
Sep 14 2009, 12:43 PM
Last Post By: Sigmund Nastrazzurro
Regular Non-spherical worlds
chakka 7 743
Sep 11 2009, 08:30 PM
Last Post By: colddigger
Regular Jellyhopers
my own crazy idea for an alien
sam999 12 631
Sep 10 2009, 04:37 PM
Last Post By: sam999
Regular Motherboard
Ànraich 4 473
Sep 10 2009, 04:36 PM
Last Post By: Ànraich
Regular
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The Andromeda Strain
Plausible?
Canis Lupis 16 2,082
Sep 7 2009, 03:12 PM
Last Post By: colddigger
Regular
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Tongban
a resurrection of Rilln
Canis Lupis 24 1,309
Aug 19 2009, 02:55 PM
Last Post By: Canis Lupis
Hot Topic
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wierd world
a insperational group project
ATEK Azul 37 1,518
Aug 19 2009, 09:27 AM
Last Post By: Rick Raptor
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The Biology and Culture of the Olfacteffor
Giant Blue Anteater 18 1,075
Aug 12 2009, 01:04 PM
Last Post By: Empyreon
Regular Food Chain
Dragon wasp 10 859
Aug 11 2009, 03:06 PM
Last Post By: Empyreon
Regular
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The limits of evolution?
super-fast evolution
Toad of Spades 27 1,407
Aug 9 2009, 07:00 PM
Last Post By: ATEK Azul
Regular Life on an Asteroid
Is it possible?
The Dodo 4 521
Aug 9 2009, 04:33 PM
Last Post By: The Dodo
Hot Topic
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Eurotheah
A group of quick sketches of aliens.
VampiricTyrant 32 1,989
Aug 7 2009, 10:39 PM
Last Post By: VampiricTyrant
Regular
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Complex life on Mars
Not at all a serious idea.
T.Neo 16 1,269
Aug 5 2009, 07:20 PM
Last Post By: ATEK Azul
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SPORE: Public Ecosystem
An Evolution Project
KayKay 61 2,619
Aug 4 2009, 01:32 AM
Last Post By: The Dodo
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