A collection of short commentaries of scientific papers published in 1996, covering topics such as biogeography, Milankovitch cycles, turtles, degeneration by mutation, fossil sharks, fossil bird, ichthyosaurs, speciation rates in cichlid fish, plate tectonic anomaly. Published in Origins v. 23, n. 2.

Various examples adequately establish that a radioisotope age does not necessarily have a real-time significance. A relationship of a radioisotope age with real-time must be based on an interpretation.

Darwin's theory is in crisis. The academic ball is in its court. What will the Adventist ministry speak in response? The general community, for the time being at least, is listening.

Ancient fossil reefs are considered to be a challenge to the biblical concept of creation. But do these fossil reefs really negate the biblical account of beginnings? Published in Origins v. 21, n. 2.

Coconino Sandstone research has demonstrated how catastrophists can use their theory to develop specific hypotheses about a geologic feature (the Coconino Sandstone), and successfully carry out scientific research to test that hypothesis. This is one criteria that science used to determine the scientific value of any theory.

The catastrophic burial of plant debris and its subsequent change to coal is not accepted by most coal geologists. However, the dominant "peat bog" theory presents problems that have remained unanswered for more than a hundred years. A Flood model for the formation of coal answers some of these problems and provides a scientifically reasonable explanation for the origin of the vast quantities of coal that exist worldwide.

Pseudogenes are DNA sequences that resemble functional genes but seem to have no purpose. The presence of similar eta globin pseudogenes in humans and chimps has been used as an argument for common ancestry of the two species.

The question of whether the six days of creation were actual 24-hour periods of time or only symbolic representations of millions of years has been debated for centuries. During the past century and a half, with recognition of the theory of evolution and its vast eons of time, the matter has been under more serious scrutiny. Published in Origins v. 21, n. 1.

The fact that animals need plants poses a problem for the evolutionary model, since the record of past life sometimes reveals non-viable ecosystems. Published in Origins v. 21, n. 1.

The philosophical context in which biology is presented can make an important difference in its meaning for the student. The philosophical worldview of the biblical Christian is quite different from that of the non-Christian; thus, the biology teacher may have a profound influence on the development of worldview by the student.

This paper proposes that mutation and natural selection can produce biological change, but are not sufficient to explain the origins of biodiversity and complexity. Instead, the authors argue that genetic complexity is the result of intelligent design, and was at a maximum when life on Earth first came into being. Published in Origins v. 20, n. 2.

It is unwarranted to assume a priori, as in the past that all upright petrified trees had grown in the place where they are now found. The transport of trees and their deposition in an erect stance is not as unlikely or as rare as might be expected. Upright fossil trees within the geological column are compatible with a Flood model. Actually, when all factors are considered, a catastrophe involving water and many floating trees is a more satisfactory explanation for their origin.

Evolution theory is based on competition and struggle for survival, but some animals act in a way that favors reproduction of other individuals and reduces their own competitive status. The theory of sociobiology wants to explain this altruistic behavior as having a genetic basis, so that individuals with the gene tend to help other individuals with the same gene,.This maintains the gene in the population. The idea that human behavior is genetically determined is controversial. 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.

The pipes and dikes in Kodachrome Basin have come from the sedimentary layers below, and raise interesting questions regarding the amount of time involved in their formation. Published in Origins v. 19, n. 1.

The unnatural mixture and the rapid stratigraphic shifts of fauna seem to require catastrophic water transport into the area. The large geographic extent precludes a local event. Creationists suggest that a world-wide flood could produce results as seen in the Santana Formation and is a better explanatory model.

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.

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 model of an ice age caused by the Genesis flood is summarized. It proposes solutions to a number of ice-age problems. Published in Origins v. 17, n. 2.

Geologic features of the KT boundary present interesting evidence relating to possible causes of the mass extinction. The widespread existence of the boundary clay has been interpreted as evidence for a worldwide event at the boundary. Published in Origins v. 17, n. 1.