
Only birds have feathers. They come in all shapes and sizes - and colours! Apart from being intrinsically beautiful in aesthetic appearance and detailed microstructure, they are intensely utilitarian. Hear the words of Gordon Rattray Taylor, in his book The Great Evolution Mystery (Abacus, 1984):
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`What an extraordinary thing is a feather! So light and yet so strong. Under
the microscope it is seen to be even more remarkable. The vane is divided
into innumerable hollow "barbs" each fringed with "barbules". Under higher
magnification, each barbule is found to be equipped with hooks. These catch
in the barbules forward of them, so that the whole structure is linked into
a single vane, resistant to the air. Actually, feathers come in two models.
The downy feathers which are designed to conserve heat (Designed? Perish
the thought: let us say "which by pure chance serve to conserve heat") lack
the hooks.' (pp.67-68)
How is it possible that such exquisite structures can be viewed as possessing only an appearance of design? The change came with Darwin, as he testified himself in his autobiography: `The old argument of design in nature . . . fails, now that the law of natural selection has been discovered'. Two comments can be made on this. First, Darwin himself recognised that God's creative design is not compatible with the idea of evolution by natural selection - because evolution is wasteful and undirected.
Second, Darwinism has completely failed to trace a viable evolutionary path from scales to feathers! Evolutionists who have made detailed studies of the matter conclude that it `defies analysis'. Consequently, the evolutionary claims are dogmatic, deductive and philosophical. They should not be accepted as the result of scientific investigation.
Design in the living world which has been rediscovered and used by man is always of interest. Michael Denton (Evolution: a theory in crisis, 1985, pages 202-203) draws our attention to a nice example.
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`In addition to its lightness and strength the feather has also permitted
the exploitation of a number of sophisticated aerodynamic principles in
the design of the bird's wing. One problem common to all aerofoils is turbulence,
which reduces lift and causes stalling. Turbulence can be greatly cut down
by the provision of slots in the aerofoil which let through part of the
air stream and tend to smooth down the flow. Aeroengineers have used this
principle by placing a small subsidiary aerofoil in front of the main wing,
creating the so-called Handley Page slot. The use of feathers in the design
of an aerofoil lends itself admirably to the provision of slots, and most
birds' wings exploit this technique.'
David J. Tyler (1992)