Sphaerechinus granularis Type post Author Paul Nelson Date February 21, 2023 CategoriesBiologyEvolutionIntelligent DesignPhilosophy Tagged , acorn worms, anus, Biological Reviews, chordates, Deuterostomia, echinoderms, embryology, evolution, gills, Harvard University, hemichordates, mouth, phylogeny, sea urchins, Smithsonian Institution, spines, University of Oklahoma, worms A Remarkably Candid Statement About an Unsolved Evolutionary Puzzle Paul Nelson February 21, 2023 Biology, Evolution, Intelligent Design, Philosophy 3 According to current systematic theory, everyone reading this right now belongs to the taxonomic category Deuterostomia. Read More ›
Short-beaked echidna Type post Author Jonathan Wells Date February 11, 2022 CategoriesBiologyEvolutionLife Sciences Tagged , Africa, Americas, cactus, camera eye, carnivorous plants, Charles Darwin, common ancestry, convergent evolution, echidna, evolution, homology, human beings, octopuses, On the Origin of Species, porcupine, Simon Conway Morris, spines, Top Scientific Problems with Evolution (series), UC Berkeley Top Scientific Problems with Evolution: Homology Jonathan Wells February 11, 2022 Biology, Evolution, Life Sciences 6 The spines of Australian echidnas and North American porcupines are remarkably similar. Read More ›