In my previous post, we saw that Eugenie Koonin argued that a formal test of universal common ancestry (UCA) “is unlikely to be feasible” but yet he claimed that the evidence in support of UCA “by comparative genomics is overwhelming.” Such thinking is common among evolutionists, who seek to to demonstrate UCA by finding a consilience of multiple lines of evidence in favor of it. In his Nature paper, Douglas Theobald similarly seeks to support UCA through a consilience of multiple lines of evidence: UCA is now supported by a wealth of evidence from many independent sources, including: (1) the agreement between phylogeny and biogeography; (2) the correspondence between phylogeny and the palaeontological record; (3) the existence of numerous predicted Read More ›

In my prior post, I explained why Doug Theobald used the wrong null hypothesis for testing common ancestry. The odds of two lengthy genes arriving at a highly similar DNA sequence by chance, or even evolutionary convergence, is extremely small. Unless there’s an underlying political motive, it shouldn’t take a paper in Nature to show that obvious point. Common descent is a much better explanation for these genetic similarities…. Unless, that is, you admit the possibility of common design. If you ignore common design, then the explanation for similarities between gene sequences must be common descent. Doug Theobald’s recent paper in Nature gets to his conclusion only by ignoring the possibility of common design and then equating common design (wrongly Read More ›