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Taking some inspiration from the finding that a small proportion is able to perceive significantly more colors than the rest of the population, I would like to explore to what degree similar traits ca …

I wish to create the necessary/sufficient conditions for an island-hopping super predator. Relevant characteristics below: In terms of size, it is to be massive, perhaps akin to a Tyrannosaurus while …

Premise Typically, we might view the evolution of the brain as a linear progression: with its primitive reptilian brain stem as the origin and the lofty neocortex as the pinnacle. … Question What characteristics/events of/in the exoplanet would be required to conceivably trigger the evolution of abstract thought early on in the evolution of brains? …

It's virtually a platitude among scientific studies that sharks have changed little over their 400 million year+ evolutionary heritage. On the one hand, sizes span from tiny varieties to leviathans li …

On "Earth" species that are higher up the food chain tend to have more advanced brains. I won't tell everyone what they already know, but just for illustration: chimps are capable of making tools and …

Since evolution tends to occur efficiently, things are repurposed instead of starting from scratch. When we propose evolutionary solutions for the cobra, the quality metric will be efficiency. …

Against the backdrop of man-driven deforestation pushing some species to extinction, my world needs a viable basis for the survival and thriving of tigers after an apocalypse. It would seem counter-in …

I was intrigued by some discussion on this article concerning the evolution of sexual reproduction. …

It would be easy to assume conventional evolutionary heritage and have humans move into caves later, but in this otherwise earth-like world, the surface was never habitable. Given the somewhat axiomat …

This is primarily a society question, and so technology-based, evolution-based or genetic-engineering-based answers are not preferred. … Note: Of course I take the point that technology and evolution are important for sociology, but such things should not be the defining characteristic of the answer Further Clarifications and Assumptions …

Premise I was inspired by Karl Niklas who used computer modeling to simulate the ideal structure for a tree when different traits were favored. Here is a chart summarizing his work: Explanation …

Here on "Earth" organisms tend to evolve only enough mental processing power to handle sensory inputs in modest amounts. Taking "human" brains for a quick example, even though we have millions of sens …

According to the understanding of human evolution at the time of this post, humans began to develop dark skin pigments through natural selection about 1 million years ago. …

Premise I'm creating a pre-history world to attempt to demonstrate an alternative sequence of events. I would like natural forces to somehow make natural selection view intelligence/technology as inf …

In terms of evolution, having one brain is an expensive component -- let alone several. …