>I know of no biological forms that have evolved wheels.
Silly to reduce all rotary motion to wheels.
Less complex to roll as a ball -- the benefit of rotary motion without facilitating the additional complexity of adding a steering mechanism.
> But wheels have turned out to be a hell of a lot faster than fins or legs.
Nature doesn't somehow cares about hyper-optimizing for a single characteristic like 'speed', rather the characteristics arise from individual (species) successes between genetics lines.
Silly to reduce all rotary motion to wheels.
Less complex to roll as a ball -- the benefit of rotary motion without facilitating the additional complexity of adding a steering mechanism.
> But wheels have turned out to be a hell of a lot faster than fins or legs.
Nature doesn't somehow cares about hyper-optimizing for a single characteristic like 'speed', rather the characteristics arise from individual (species) successes between genetics lines.
https://en.wikipedia.org/wiki/Rotating_locomotion_in_living_...
https://en.wikipedia.org/wiki/Category:Rolling_animals