The phenomenon of convergent evolution suggests that natural selection fits better with the analogy of the engineer than it does the tinkerer.
Remarkably, even Ernst Mayr was forced to tacitly acknowledge the challenge to Darwinism posed by convergence.
Endothermy may have advantages over ectothermy, but I wouldn’t advise taking your chances by picking up a poisonous snake.
From crippled fruit flies we move to perhaps the most pervasive icon of them all, the peppered moth.
Just because something can be counted as science does not automatically mean that it is true.