Skin is made in large measure of a protein called collagen.
The theory of undirected evolution is already dead, but the work of science continues.
We are not inferring design to account for a black box, but to account for an open box.
It was only about sixty years ago that the expansion of the universe was first observed.
It is often said that science must avoid any conclusions which smack of the supernatural.
In many biological structures proteins are simply components of larger molecular machines.
Thus it seemed to Haeckel that such simple life could easily be produced from inanimate material.
As can be seen even by this limited number of examples proteins carry out amazingly diverse functions.
In order to say that some function is understood, every relevant step in the process must be elucidated.
Science is not a game in which arbitrary rules are used to decide what explanations are to be permitted.