Hexapod Uniformity Allows Shrinkage

The most distinctive change insects made in the primitive chain of segments having legs on each, was by reducing their walking legs from many to only six. These six legs attach to a specialized, consolidated powerful thorax of just three body segments. As with smaller insects that resemble larger ones, the compressed anatomy of the thorax, originally most probably a minor variant, became standard in large as well as small arthropods. Additionally, the anatomy of the thorax is stable, as it appears to 'shrink' down quite readily to fit within the smallest bodies.

The components of the insect plan retain for the most part their customary relationships, suggesting that anatomical relationships are crucial to insect success and are robust enough to have remained little changed over evolution, as organs and their parts most often retain their standard positions. These observations taken together with the worldwide distribution of arthropods demonstrate how successful design of the arthropod body is. Would that we might emulate it and that the designs for our devices were as robust.

0 0

Post a comment