Mr. Thomas again masters the great leap of taking a singular supposed example and making great inferences where none exist. Sea urchins are very niche specific and have no competition in that niche. They had no selective pressure to change their feeding apparatus. However, if Brian had bothered to go any farther than a cursory glance at one article he would have noted that there are over 6000 species of urchins. Fundamentally, sea urchins represent a well diversified phylogenetic tree.
And yet no transitionals between non-sea urchins and sea urchins...just as biblical creation predicts.
But meanwhile, supposing urchins evolved from a single-celled life-form, as did everything else...is no great leap at all?
Riiiiiiight.