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.
Fossil reefs from Silurian and Devonian sediments in the Great Lakes region of the United States are compared with a modern reef in Florida. The fossil reefs differ significantly from modern reefs by lacking the framework of corals that are characteristic of modern reefs. Instead, the fossil reefs look more like carbonate mud mounds. 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.
Claims that human and dinosaur footprints are found together in the Paluxy River of Texas have been retracted. Creationists must be careful to check the validity of the claims they make. Published in Origins v. 14, n. 1.
The geochronological time scale of thousands of millions of years is based mainly on radiometric dating. On the other hand, some other time-dependent processes change at rates which challenge generally accepted geochronology. Published in Origins v. 13, n. 2.
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.
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.
Archaeopteryx has traits of both birds and reptiles, and has long been accepted as a fossil intermediate. Recently, the charge has been presented that Archaeopteryx is a forgery rather than a legitimate fossil. This has resulted in much research into the nature of the fossils of Archaeopteryx. Published in Origins v. 13, n. 1.
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.
Vitamin C is important in vertebrate physiology, but is acquired in different ways. Some mammals and perching birds do not synthesize it and must get it in their diet. Most other mammals and birds synthesize vitamin C, in their kidneys, the livers, or both. The pattern of synthesizing sometimes follows taxonomic patterns and sometimes not. Published in Origins v. 12, n. 2.
A review of the book, The Great Evolution Mystery. Darwinism is entirely inadequate to explain evolution, so some other purely naturalistic mechanism is needed. Published in Origins v. 12, n. 1.
Species in the same family or genus may have very similar chromosomal banding patterns, but with apparent rearrangements of parts of some chromsomes. Such rearrangements may contribute to speciation in mammals by interfering with meoisis. Published in Origins v. 11, n. 2.
Radioisotope ages are calculated from ratios of certain atoms. The isotopic ratios can be precisely measured, but the calculation of age from that ratio involves assumptions that may vary depending on the philosophical orientation of the investigator. Published in Origins v. 10, n. 2.
Animals with high metabolic rates (birds and mammals) are capable of greater work output (speed, etc) but are restricted in size and shape in order to avoid losing too much body heat. Reptiles and amphibians have lower metabolic rates, and can survive at much smaller sizes and elongated shapes than birds or mammals. This is interpreted as a result of design for a diverse ecosystem. Published in Origins v. 9, n. 2.
Reactions to the article, Precambrian Pollen in the Grand Canyon - A Reexamination. Published in Origins v. 9, n. 1.
A review of the book, Ecological Biogeography of Australia. An exhaustive review of the geology, flora nad fauna of Australia. Published in Origins v. 8, n. 2.
