True skeptics should question everything, and not just everything apart from Darwinism and materialism.
Those of us who find purpose in biology instead of random tinkering will not run out of material to get excited about any time soon.
What do biologists make of the apparently purposive nature of all these different kinds of complex programmed behaviors?
Complex programmed behaviors are evident throughout the animal kingdom, but in these pages the focus will primarily be on less advanced animals.
They appear in the early Cambrian fossil record: the first examples of the most diverse phylum on earth. Who knew their skills would become the envy of human engineers?