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.
Most amino acids exist in two forms, commonly called "left" and "right." Living organisms use only "left" amino acids, but after death, the "left" amino acids begin changing to "right" forms, until there is an equal number of both. This suggests the possibility of using the amount of change as a measure of time, leading to the development of amino-acid dating. This dating of method does not confirm the results of other methods of dating. Published in Origins v. 12, n. 1.
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.
A review of the book, The Mystery of Life's Origin: Reassessing Current Theories. This is a review of the scientific evidence against the theory of abiogenesis. Published in Origins v. 11, n. 2.
Life is a property of precisely ordered biopolymers maintaining a non-equilibrium state. The ordering requires information, and this, with the chemical state of non-equilibrium, are conditions not available to natural processes, and point to the existence of a Creator. Published in Origins v. 11, n. 2.
A review of two books on the origin of life: Life Itself, and Evolution from Space. Both books conclude that life is much too complex to have originated on the earth, and must have come from some other part of the universe. Published in Origins v. 10, 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.
A review of the book, Christianity and the Age of the Earth. The book presents a biased viewpoint against recent creation, but does point out some serious challenges that confront recent creationists. Published in Origins v 10, n. 1.
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.
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.
In the early sixties, Clifford Burdick claimed to have discovered pollen of modern plant in Precambrian rocks. Dr. Chadwick has not been able to confirm Burdick's findings, however, he does point out that this type of irregularity has been reported by several traditional geologists and that these findings pose a challenge to one of evolution's fundamental tenets.
The picture that emerges from all the data that relate to cosmic chronology appears to be one of dynamic physical processes operating over extended periods of time, during the last 4.5 billion years of which discrete entities of the Solar System have been in existence. This suggests the word "earth" in Genesis 1 may refer to the land surface of the planet, and not to the planet itself. Published in Origins v. 8, n. 1.
Dates based on amino-acid racemization and uranium radioactive decay were quite different, with preference given to the radiometric dates. Published in Origins v. 8, n. 1.
A fossil bird from Argentina is now regarded as the largest known flying bird. Published in Origins v. 7, n. 2.
Changes in the distributions of fossil beetles in Pleistocene sediments provide further evidence that significant climatic change has taken place in post-flood times. Published in Origins v. 7, n. 2.
The normal accumulation of organic debris and the subsequent formation of humus and true soil which proceeds relentlessly on modern growth surfaces does not readily account for several of the phenomena seen in the organic levels of Yellowstone. Published in Origins v. 6, n. 2.
