[donh]

Here's where I keep referring to "fallen science." Guppy breeders have created lyre-tail guppies. Why would DNA come about if RNA was doing it's job?

Why would simians come about if primative anthropods were doing their job?

Times change. The earth cools. Other alternative approaches become so much more efficient in the altered environment that they prevail.

[donh]

Guppy breeders have created lyre-tail guppies.

Oh come off it. Thousands of examples of speciation have been found in the natural world. It is common grist of Biology Grad student's Doctorals.