A large-scale genetic comparison has discovered that 90% of all species are only 100 – 200K years old and have hardly evolved at all. I have not seen any mention, yet, of the role Panspermia may have played in the apparent explosion of fully formed species so recently. I would be thrilled to have your first comment on the subject published on the Cosmic Tusk. Would you be willing to provide some preliminary thoughts for the CT? Do you believe Panspermia can help explain this phenomena?
Here is Prof. Chandra:
Proof of ongoing panspermia?
The recent work (1) involving “DNA barcoding” of some five million specimens covering over 100,000 animal species, including humans, has been claimed to yield a result utterly incompatible with Darwinian evolution confined to the Earth. Humans, house sparrows, sandpipers are just a few examples of species that have been found — according to this paper — to display an exceedingly narrow range of genetic diversity, and this data is claimed to be consistent with all the crucial genes of 90 percent of all animal species arriving on the Earth 100,000-200,000 years ago. You could not ask for a more startling demonstration of the validity of the Hoyle-Wickramasinghe model of panspermia that was recently reviewed in an article by Steele et al (2). Evolution can only take place on a scale that vastly transcends the size of our planet, the size of our solar system, even perhaps that of the galaxy. The Earth receives injections of “evolved” genes sporadically from the cosmos at large (3). We now know that there are over 100 billion habitable planets in our galaxy alone so exchanges of material between them is well nigh impossible to avoid. It is only in such a way that all the facts about life on our planet can be understood. Viva Panspermia!
Prof Chandra Wickramasinghe
Stoeckle, M.Y. and Thaler, D.S., 2018. Human Evolution, 33 (1-2), 1-30