posted on Nov, 22 2012 @ 05:14 PM
Given a sufficiently large, fertile and enduring environment where wheels could facilitate travel, I think symbiotic relationships could evolve in
which one species acts as wheels attached to the feet of another species. The environment would need to resemble smooth, hard roadways, connecting
food to other resources. Propulsion could be accomplished in the manner of roller skating. Overcrowding of these natural roadways would limit
proliferation of such beings until they learn to cooperate and observe traffic rules.
This has not happened on Earth because of the lack of natural roadways. Wheels have no survival value in any natural environment on Earth, except
perhaps on salt flats, which are lacking in other resources. Even salt flats are periodically flooded, turning them into temporary bogs where wheels