Welcome to the website resource for the Evolution 101 podcast! Here you can find relevant links, leave listener feedback, and find evidences posted in conjunction with podcast subjects. As of January 11, there have been over 200,000 downloads of this podcast. Thanks for listening, everyone! If you have a question or comments, you can contact me here or send an email to: zach@drzach.net Click here to check out my visit to Dr. Carl Baugh's Creation Evidence Museum in Glen Rose, Texas. Or here to check out my visit to the Answers in Genesis Creation Museum in Petersburg, Kentucky.

The Problem of Species

I was invited to give a lecture to the North Texas Church of Freethought on the subject of evolution, and I chose to return to the Problem of Species, which I've talked about before on the podcast. Essentially, the ways in which we have historically attempted to distinguish one species from another (typology, morphology, etc.) are not perfect. Not even sexual isolation is without exception, as we know from countless instances of hybridization between various species. A further problem is the existence of ring species, which are either groups of geographically continuous subspecies, or the divergent evolution of members of a diverse species population. Ultimately, these problems trouble us because as humans, we prefer to think of reality as composed of discontinuous entities and concepts, while science (particularly biological science) continues to show us that many concepts intersect with each other as in a continuum. The concept of species is such, and reflects what Richard Dawkins refers to as "the tyranny of the discontinuous mind."

You can download an iPod-compatible version of this lecture here.

A lecture on stem cell biology can be seen on the Apologia page, and can also be downloaded here.