Feathers evolved from scales whose original role was insulation rather than flight. The wings of bats and pterodactyls are modifications of forelimbs originally designed for walking. Our lungs developed from the swim bladders of fish which evolved for buoyancy control.
(Volvox, I learned, is the only biological creature on the planet that actually has a wheel.)
ever since Darwin published his world-shattering treatise on the theory of evolution, the case for man’s primate origins has been bolstered a thousandfold. Today it is impossible to seriously refute this point:
Homo floresiensis,