A collection of short commentaries on scientific papers published in 1991, covering topics such as Permian trees, molecular genetics, epigenetics, inheritance of paternal mtDNA, water and formation of petroleum, water in mantle rocks, impacts, Ordovician volcanism, molecular phylogenies of ratites, termites, cichlids and sabertooths, osteocalcin in dinosaur bones, fossil flowers, origin of life, Precambrian predation, stromatolites, Cambrian Explosion, quality of fossil record, rapid speciation, tree biogeography, Miocene ape, fossil dermopteran, Asian marsupial, dinosaurs, mammal-like reptile. Published in Origins v. 19, n. 2.

A review of the book, The Age of the Earth. Presents the standard interpretation of radioisotope data. Published in Origins v. 19, n. 2.

A review of the book, The Early Evolution of Metazoa and the Significance of Problematic Taxa. Published in Origins v. 19, n. 2.

Microorganisms can exist in rocks several kilometers below the surface of the earth. Recently a number of reports indicate that these organisms are much more common than previously surmised and that vast regions of the underworld may be inhabited. Published in Origins v. 19, n. 2.

Several ideas have been proposed over the past two centuries to explain how organisms could have evolved through naturalistic processes. None of them seems viable, and it seems reasonable that creation should be considered as an explanation. Published in Origins v. 19, n. 1.

A collection of short commentaries of scientific papers published in 1991, covering topics such as Ussher's chronology, impacts, fossil patterns, mitochondrial Eve, phylogenies, coelacanth, hagfish, Cambrian explosion, and fossil platypus.

A collection of short commentaries on scientifc papers published in 1991, covering topics such as phylogenies, origin of life, Precambrian fossils, polar dinosaurs, fossil turtles, Lysan finch, ecological gradients and the fossil record. Published in Origins v. 18, n. 1.

A review of the book, Arguments on Evolution: A Paleontologist's Perspective. This book is a defense against recent criticisms of neo-Darwinism. Published in Origins v. 18, n. 1.

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 review of the book, Absolute Age Determination. An authoritative description is provided of the methods of age-dating used to estimate the age of the earth. Published in Origins v. 17, n. 2.

The approach outlined in this paper suggests that the radiometric age assigned to the inorganic minerals associated with a fossil is more a reflection of the characteristics of the source of this inorganic material than an indication of the age of the fossil. 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.

A review of the book, Rates of Evolution. Published from a symposium on evolution. Published in Origins v. 16, n. 2.

A review of the book, Principles of Isotope Geology. An authoritative description of radioisotope dating and use of stable isotope ratios. Published in Origins v. 16, n. 1.

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.

Reaction to the article "Fossil Binding in Modern and Ancient Reef." Published in Origins v. 16, n. 2.

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.