Speculativeevolution Community

Introducing The Alternate History of Ireta

Welcome to one of my oldest speculative evolution projects, Ireta. Ireta is an alternate Earth in which the dinosaur killing asteroid was smaller and hits the South Pacific instead of the Yucatán. Resulting in multiple survivors, including the non-avian dinosaurs, alongside a huge shift in the... read more

First Lemuria Phase 2 submission!

This species here is a noasaurid ceratosaur from Lemuria’s savannas

Submission 2 for Lemuria Phase II

A crab-eating noasaur, and a fully aquatic mosasauroid of Oligocene Lemuria’s central wetlands

Class draconem

Here's a draft. --- I've spent years building something I'd like to share with people who care about speculative biology. It's called Class Draconem — a scientifically grounded evolutionary history of dragons, starting from a real genetic event (a Hox gene duplication in a Silurian fish that... read more

The Cave Eater

The Cave Eater is a descendant of silky anteaters, as the forests of south America disappeared, silky anteaters were forced out of the trees and on to land, one group sought cave systems as their refuge, devoid of large predators, these pioneering organisms would eventually give rise to "the cave... read more

Blue Passenger Dog

The Blue Passenger Dog, is a future canine from the American plains, they are generalists and eat whatever they can, but the majority of their diet consists of insects. The most interesting aspect of the passenger dog is the behavior which lends to their name, passenger dogs can often be found... read more