Chapter One of the article, Life: An Evidence for Creation. Published in Origins v. 25, n. 1.

What are genes? What role do they play in the function of organisms?

As a scientist, I frequently find myself taking a polemic stance in defense of creationism. In doing this, I easily lose sight nature as a revealer of its Creator. It is a pleasant change to contemplate my field of scientific interest, looking for insight about the Creator.

As biological knowledge has increased, the argument for design has been revived and expressed in more sophisticated ways, such as the argument from “irreducible complexity.” The existence of certain features that could not survive in intermediate stages is evidence of a Designer. It is also evidence of a Designer God who created by special intervention—Creation—and not through a continuous process such as evolution.

It must be emphasized that Chemistry, like any other area of scientific knowledge, is neither good nor bad, but like everything else that was marred by the entrance of sin, man's ability to manipulate his environment has led to misuse. Instead of giving in to technicism, where technology sets the agenda for life on planet Earth, the ethics of the Bible should be the basis on which we make decisions on the value of life and on the conduct of life.

A collection of short commentaries on scientific papers published in 1993-1994, covering such topics as parasite degeneration, convergence in diapsid reptiles, induced neoteny, genetic code, directed mutation in bacteria, radiohalos in a diamond, coelacanth phylogeny, marsupial phylogeny, origin of life, and fossil change in Jurassic rocks. Published in Origins v. 22, n. 1.

We need to develop ways to foster consciousness about the environment and a willingness to participate as good stewards of creation.

Ecofeminism enlivens and challenges Adventist spirituality to embody justice and empower others; challenge dualism and recenter humanity within creation and God's presence.

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 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.

Survival on earth seems bleak as the environmental crisis worsens. Amidst the destruction, how should Adventists respond to the environmental crisis? Creation and incarnation dominate Christian understandings of ecology. However, I think that a third theological theme, the Resurrection, best illuminates the relationship of Christianity to the environment.

If we take the view that we are transients in an alien community, then our interest in the long-term welfare of the community will tend to be limited. If we see ourselves as fully embedded in a complex web of life, as an integral part of God's creation, and as responsible stewards of that creation, then our response to challenges such as the environmental issue will take on a distinctly different character.

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.

Adventist colleges have long promoted a wholistic education. For this reason they have been committed to combining liberal arts and ethics. Including environmental education in this curriculum can make a significant contribution to shaping the sensitivities of young Christians.

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.

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.

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.

Because we are promised an earth made new, do we have the right to hasten the death of this one? In the years since college my questions have become more acute as I have learned about specific threats to the environment.

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.