In the early development of the theory of evolution by natural selection, two men stand out as having played a central role: Charles Darwin and Alfred Wallace. Both men traveled widely and were keen observers of nature. For both men, visits to islands played an important role in developing their understanding of nature. Darwin's visit to the Galapagos Islands is of special interest.

A collection of short commentaries on scientific papers published in 1989-1990, covering topics such as end-Permian extinction, fossil plant DNA, phylogenies, Triassic paleobiogeography, fossils, dinosaurs, science, radiocarbon dating, rift lake cichlids, fossils out of sequence, and mass extinction patterns. Published in Origins v. 17, n. 2.

A collection of short commentaries on scientific papers published in 1989, covering topics such as philosophy of science, mantle plumes, molecular clock, plant phylogeny, paleobiogeography, fossil reptile, Ediacaran fossils, rapid change in birds and insects, rapid oil formation, molecular evolution, population bottleneck in Drosophila, and mass mortality of sea urchins. Published in Origins v. 17, n. 1.

A review of the book, Wonderful Life: The Burgess Shale and the Nature of History. The book describes the history of discovery of the Burgess Shale fossils and their classification. Published in Origins v. 17, n. 1.

A collection of short commentaries on scientific papers published in 1997, covering topics such as Darwin's finches, teleology, exon shuffling, flood geology, origin of life, dinosaurs, theistic evolution, radiocarbon dating, fossil invertebrates, and monotreme chromosomes. Published in Origins v. 16, n. 2.

Most punctuated equilibria theories explain why proposed exceptions tend to be in the Upper Cenozoic. Punq Eq Creation Style, however, not only predicts the stasis and abrupt appearance of species, but it also predicts that exceptions will be found in the Upper Cenozoic among forminifera. Because of its greater explanatory power, PECS teoyr is superior to other PE theories. Published in Origins v. 16, n. 1.

A collection of short commentaries on scientific papers published in 1988-1989, and covering topics such as green sea turtle migration, adaptive mutation in bacteria, DNA-hybridization phylogenetics, biogeography of Krakatau Island, molecular phylogeny of animals, molecular evolution of plant mitochondria, molecular clock in plants, problems in evolution, and teaching science.

A review of the book, Darwinism: The Refutation of a Myth. Written by a developmental biologist emphasizing the inadequacy of Darwinian evolutionary theory and advocating the importance of developmental processes in evolution. Published in Origins v. 16, n. 1.

A collection of short commentaries on scientific papers published mostly in 1988, covering topics such as human origins, anti-evolutionary literature, mutations, geology and art, paleomagnetism, dinosaurs, origin of the universe, and plate tectonics. Published in Origins v. 16, n. 2.

Foraminifers exemplify many of the problems of fitting the fossil record into a short chronology, including thousands of named species and apparent evolutionary sequences. Any short-time creationist model must be able to explain these features. Published in Origins v. 15, n. 1.

The method of DNA-DNA hybridization has been applied to the relationships of birds, with some surprising results. The method is described and the results analyzed. While the results are quite interesting, there appear to be limits to the resolution of the method, and it seems inadvisable to depend upon this method alone when studying bird relationships. Published in Origins v. 14, n. 2.

A collection of short commentaries on scientific papers mostly published in 1986-1987, covering topics such as amino-acid dating; creation, evolution and design; Cretaceous mass extinction, Blind Watchmaker, genetic bottleneck, slot machines and mutations, God and Nature, biogeography of marsupials, salamanders and ostriches; and a fossil climbing mammal. Published in Origins v. 14, n. 1.

A collection of short commentaries on scientific papers publised in 1986, covering topics such as Australopithecus, Cretaceous extinction, carbon-14 dating, molecular clocks, kiwi egg size, Darwin's mistakes, rapid change in snails, fossil birds, limits of science, tarsiers and presuppositions, source of European sandstones, chromosomal speciation, convergence and the giant panda. Published in Origins v. 13, n. 2.

A review of the book, In the Beginning. The book attempts to explain Genesis from a naturalistic perspective, and his bias shows clearly. Published in Origins v. 13, n. 2.

Staining of chromosomes reveals a pattern of banding that may be used for comparisons of different species. Similar species typically have similar banding patterns, although there are exceptions. Banding patterns may be interpreted as hypotheses of relationship but are not, in themselves, sufficient to settle such questions. Published in Origins v. 13, n. 1.

A review of the book, Evolution: A Theory in Crisis. Evolutionary theory faces many contrary lines of evidence and is in need of major changes. Published in Origins v. 13, n. 1.

A collection of short commentaries on scientific articles published in 1983, covering topics such as the history of Darwinism, integrity in science, evolution and thermodynamics, North American geology, Quaternary dating methods, origin of life, and the half-life of Technetium-99.

A review of the book, Abusing Science: The Case Against Creationism. The book gives responses to criticisms of evolutionary theory by creationists, and presents several criticisms of creation theory. Published in Origins v. 12, n. 2.

A collection of short commentaries on scientifc papers published in 1983-1985, covering topics such as amino acid dating, problems in evolutionary theory, God and the New Physics, Scientists Confront Creationism, transgenic mammals, philosophy of science, and In the Minds of Men. Published in Origins v. 12, n. 2.

Some prominent scientists had educators have declared that creation has failed the test of science and has to be discarded. However, ideas that have been discarded are sometimes found to be true. Creation should not be discarded, because there is no better explanation for design in nature and the origin of life. Published in Origins v. 12, n. 1.