A review of the book, Wonderful Life: The Burgess Shale and the Nature of History. The book describes the history of discovery of the Burgess Shale fossils and their classification. Published in Origins v. 17, n. 1.

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.

Claims that human and dinosaur footprints are found together in the Paluxy River of Texas have been retracted.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.

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.

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.

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.

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.

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.

The Coconino Sandstone has traditionally been interpreted as wind-deposited, but fossil trackways in this formation point to underwater deposition. Published in Origins v. 5, 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.

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.

The Glen Rose region of the Paluxy River does not provide good evidence for the past existence of giant men, nor does it provide evidence for the coexistence of such men and the giant dinosaurs. Published in Origins v. 2, n. 2.

A tiny marine worm, Spirorbis, constructs a calcareous tube, and is often found attached to shells and debris in the ocean. Fossil Spirorbis are sometimes common in coal beds. Some have suggested Spirorbis lived in fresh-water habitats in the past, but this is highly unlikely. It is more likely that coal formed in marine waters during the Flood. Published in Origins v. 2, n. 1.

The Gingko Petrified Forest in western Washington state contains a large variety of petrified plant species, more than any other site known. The plants represent a mixture of tropical and temperate species that appear to have been transported and not grown in situ. Published in Origins v. 1, n. 2.

This is an update of "The Ginkgo Petrified Forest" Origins 1(2):101-103 (1974)