"To provide scientific explanations, a creationist would have to identify the plan implemented in the creation. The trouble is that there are countless examples of properties of organisms that are hard to integrate into a coherent theory of design. There are two main types of difficulty, stemming from the frequent tinkerings of evolution in the equally common nastiness of nature. Let us begin with evolutionary tinkering. Structures already present or modified to answer to the organisms current needs. The result may be clumsy and inefficient, but it gets the job done.… (examples of the panda’s thumb, orchid self-fertilization, and the ruminant digestive system elided) The second class of cases cover those in which, to put it bluntly, nature’s ways are rather repulsive. There is nothing intrinsically beautiful about the scavenging of vultures, the copulatory behavior of the female praying mantis (who tries to bite off the head of the “lucky” male), or the ways in which some insects paralyze their prey.… (example of coprophagy elided)"