Psi Wavefunction posted the newest edition of CoE late last night on Skeptic Wonder. And I do declare that this is the awesomest edition I have ever seen - of this carnival, and if any blog carnival. And, it's all about evolution.
Psi actually, genuinely, did phylogenetic analysis of the submitted posts, converting the URLs into amino acid sequences, and then made phylogenetic trees based on them. How out of this world is that?!
It going to be very hard to outdo CoE #20, but I know future hosts will try their very best. Because that's what they've signed up for...
CoE #21 will be at Mauka to Makai.