Ecology, or environmental science, is multidisciplinary. As such, it allows ecology to be integrated with other disciplines. It also allows us to tie it to faith.

Many families of vertebrates appear to have reached South America from the north, as would be expected as they dispersed from the ark after the worldwide flood. These include all the widespread families. Many other families are restricted to South America. Their biogeographical history is unknown.

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.

A collection of short commentaries on scientific papers published in 1992-1993, covering topics such as biogeography of southern trees, Permo-Triassic stratigraphy, dendrochronology, endothermy in fish, genetics of cranes, genetic code variants, gene conversion, bivalve extinctions, magma mixing, extraterrestrial impacts, tillites, flood basalts, effect of transposon in floral development, convergence, hybridization in fish, molecular systematics, origin of life, soft-tissue preservation, banded iron formations, graptolites, fossil whales, dwarf mammoths, Archaeopteryx, and dinosaurs.

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 collection of short commentaries on scientific papers published in 1992, covering topics such as gene conversion, paleosols, magma mixing, molecular evolution, paleoecology, Precambrian algae, Cambrian explosion, conodont fossils, fossil birds and bird tracks, fossils, and taphonomy. Published in Origins v. 19, 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 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 collection of short commentaries on scientific papers published in 1988-1989, and covering topics such as green sea turtle migration, adaptive mutation in bacteria, DNA-hybridization phylogenetics, biogeography of Krakatau Island, molecular phylogeny of animals, molecular evolution of plant mitochondria, molecular clock in plants, problems in evolution, and teaching science.

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.

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.

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.

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.

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.

Coral reefs take time to grow, and some have questioned whether certain coral reefs could have grown to their present size in the time since the Flood. Evidence reported here indicates that rates of coral reef growth are quite variable, depending on water temperature, carbonate concentration, and depth. At the surface, ultraviolet light inhibits coral growth, so surficial measurements of coral growth are not a good basis for estimating rates of growth. Under ideal conditions, coral is capable of growing fast enough to produce present coral reefs in the time since the Flood. Published in Origins v. 6, n. 2.

A review of the book, Variation and Fixity in Nature. The nature of created kinds (baramins) is discussed and evaluated. Published in Origins v. 4, n. 2.

Rabbits have a mechanism for re-processing food after it has fermented in the cecum. This is functionally equivalent to the cud-chewing of cattle, in which fermented food is redirected so that the nutrients produced by bacterial action can be utilized by the mammal. Published in Origins v. 4, n. 2.

Major tektite falls in Australia in strata as young as 5700 years old according to radiocarbon dating have called in question both the fission-track and the K-Ar methods of dating which assign these identical tektites an age of about 700,000 years. Published in Origins v. 3, n. 2.

A living mollusk from the eastern Pacific is similar to a Silurian fossil thought to be extinct for millions of years. This "living fossil" (a "Lazarus species") is a major discovery in mollucsan biology. Published in Origins v. 3, n. 1.