Welcome Guest [Log In] [Register]
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.

While unregistered users are able to browse the forum on a basic level, registering an account provides additional forum access not visible to guests as well as the ability to join in discussions and contribute yourself! Registration is free and instantaneous.

Join our community today!

Username:   Password:

Alternative Evolution

Regular Forum Terra Alternativa
Imagine a world where dinosaurs never evolved and where crurotarsians, synapsids and pterosaurs rule dominant.
Sniper Stalkers Dec 19 2017, 07:50 AM, By Nembrotha
Topics: 38 Replies: 471
Regular Forum A Scientific Fantasy
The subforum for dialforthedevil's project.
Nation List Oct 15 2016, 05:07 AM, By Vorsa
Topics: 19 Replies: 1,211
Subforums: Suggestions, Civilizations, Accepted Species
Make New Topic
Alternative Evolution
  Title Topic Starter Replies Views Topic Info
Regular Birds With Multiple Origins
Birds a polyphyletic group?
Toad of Spades 9 575
Mar 25 2010, 11:32 AM
Last Post By: Zorku
Regular No vertabrates
seascorpion 4 349
Mar 25 2010, 08:39 AM
Last Post By: KayKay
Regular Green Tube Worms
What do you guys think?
MitchBeard 3 402
Mar 24 2010, 10:17 PM
Last Post By: Xenophile
Regular
  • Pages:
  • 1
  • 2
Primate-like or big-bodied multituberculates?
What prevented multis from attaining these forms?
Dean 17 947
Mar 24 2010, 09:39 PM
Last Post By: Margaret Pye
Regular
  • Pages:
  • 1
  • 2
Lungs?
What else might work?
sam999 21 758
Mar 22 2010, 09:58 PM
Last Post By: Zorku
Regular Help With Dicynosapiens?
Descendant of Sectioned Dicynomole
KayKay 11 478
Mar 20 2010, 06:11 PM
Last Post By: The Dodo
Hot Topic
  • Pages:
  • 1
  • 3
Alternate Races/Ethnicities
lamna 37 1,461
Mar 20 2010, 12:13 PM
Last Post By: colddigger
Regular Paleognath world
Neognaths, mammals, crocodilians extinct
Dean 14 654
Mar 16 2010, 11:50 AM
Last Post By: Dean
Regular Future of Spec
What if KT happened in Spec?
Pando 6 415
Mar 15 2010, 12:32 PM
Last Post By: Pando
Regular Alternative land vertebrates from mudskippers
In a world where tetrapods never appear
Dean 14 1,231
Mar 14 2010, 07:09 PM
Last Post By: Margaret Pye
Regular Triassic Switchout
What if the therapsids made a Jurassic comeback?
Practically Uninformed 11 552
Mar 13 2010, 02:47 PM
Last Post By: Practically Uninformed
Regular earth with Zealandia
Flishster 1 416
Mar 8 2010, 12:30 AM
Last Post By: The Dodo
Regular Artemis Fowl
the fay people: what are they
sam999 5 237
Mar 5 2010, 03:41 PM
Last Post By: Practically Uninformed
Regular Crurotarsan Radiation
Crocodile relatives dominate
Toad of Spades 13 908
Mar 4 2010, 06:27 PM
Last Post By: The Dodo
Regular Hexapodal Triclops
6 legged 3 eyed beasts
Pando 6 563
Mar 4 2010, 05:20 PM
Last Post By: Pando
Regular Low gravity
A big low gravity Earth
Pando 10 718
Feb 28 2010, 05:31 PM
Last Post By: colddigger
Regular Poisonous archosaurs
Carlos 7 692
Feb 26 2010, 04:38 AM
Last Post By: Carlos
Regular Mammaphibians?
Where reptiles never existed.
Pando 3 579
Feb 24 2010, 01:02 PM
Last Post By: Pando
Regular
  • Pages:
  • 1
  • 2
Third Eye
Venatosaurus 20 843
Feb 23 2010, 10:53 PM
Last Post By: colddigger
Hot Topic
  • Pages:
  • 1
  • 3
Possibility of a sapient metatherian
Could they evolve?
Dean 36 1,425
Feb 20 2010, 08:45 AM
Last Post By: Dean
Regular
  • Pages:
  • 1
  • 2
Griffins...In a different light
Venatosaurus 28 1,096
Feb 19 2010, 06:15 AM
Last Post By: Margaret Pye
Regular Labou
If all kinds of other fictional stuff has their own topics, then why not these creatures?
sam999 10 354
Feb 19 2010, 04:43 AM
Last Post By: Holben
Regular
  • Pages:
  • 1
  • 2
New Sapients
a strange idea for a book
Canis Lupis 26 1,066
Feb 18 2010, 05:57 AM
Last Post By: Holben
Hot Topic
  • Pages:
  • 1
  • 11
Birdless world
stronger K-T
Canis Lupis 161 4,590
Feb 15 2010, 10:50 AM
Last Post By: Holben
Regular The icarovenators
The Descent of Feathered Man
Margaret Pye 6 475
Feb 14 2010, 12:01 PM
Last Post By: Holben
Regular
  • Pages:
  • 1
  • 2
I haz a maniraptoran sophont!
And I let them name themselves!
Margaret Pye 19 1,034
Feb 14 2010, 04:36 AM
Last Post By: Holben
Regular No Dinos
removeing the dinos
sam999 10 556
Feb 13 2010, 04:10 AM
Last Post By: Holben
Regular
  • Pages:
  • 1
  • 2
Monotreme radiation
the giant platypi of terror
Vultur-10 22 1,681
Feb 12 2010, 03:05 PM
Last Post By: Holben
Regular No Birds
Stronger KT
sam999 1 269
Feb 10 2010, 10:14 PM
Last Post By: Canis Lupis
Hot Topic
  • Pages:
  • 1
  • 3
Grendel
what was it anyway?
sam999 40 1,451
Feb 10 2010, 02:32 PM
Last Post By: sam999
Hot Topic
  • Pages:
  • 1
  • 5
Pladcoderm evolution
Remember the armored fish?
Spartan Delta 61 3,171
Feb 10 2010, 07:22 AM
Last Post By: Spartan Delta
Regular
  • Pages:
  • 1
  • 2
Ediacaran-like World
Simple animal life dominates.
Toad of Spades 21 1,336
Feb 10 2010, 03:32 AM
Last Post By: Margaret Pye
Hot Topic
  • Pages:
  • 1
  • 3
What if the Air had been Colonized?
Scrublord 38 1,666
Feb 6 2010, 12:19 PM
Last Post By: Holben
Hot Topic
  • Pages:
  • 1
  • 3
Swaping Places
TheCoon 42 1,407
Feb 6 2010, 12:17 PM
Last Post By: Holben
Hot Topic
  • Pages:
  • 1
  • 6
K-T to the present.
Do Mammals need cosmic intervention?
ATEK Azul 85 2,505
Feb 5 2010, 04:51 PM
Last Post By: Holben
Make New Topic