Focus: news of interest about creation and evolution
New ‘DNA computer’
For nearly a decade, scientists have been striving to make use of the incredible information storage capacity of the DNA molecule, in order to overcome present computer technology limits to miniaturization.
DNA can hold more information in one cm3—about 1/5 of a teaspoon—than could be stored on a trillion CDs (see Creation 20(1):6, 1997).
Researchers have now assembled the first programmable autonomous computer machine in which the input, output, software and hardware are all made of biomolecules. This machine is so tiny that a trillion of them could all fit into just one test tube.
It now says that there is a growing body of evidence which indicates that the appendix has a significant function in the body’s immune system, e.g. in relation to ulcerative colitis and other inflammatory conditions. It may be particularly important in infancy and childhood.
This is years after AiG publications have highlighted these facts, e.g. The human vermiform appendix, Tech. J. 3:31–38, 1988; Your appendix ... it's there for a reason, Creation 20(1):41–43, 1997. Sadly, millions are still being taught otherwise.
Much publicity had been given to the possibility that magnetite crystals in the meteorite had been produced by bacteria (Mars microbes again? Creation 23(3):7). But the new research has found significant differences (e.g. size distribution, morphology) between bacterial crystals and the meteorite’s crystals.
An Egyptian hieroglyph shows men holding ropes linked to something like a ‘giant bird’ in the sky. This has prompted the suggestion that purpose-built kites may have been used to help in constructing Egypt’s famous pyramids.
To test this, aeronautics experts rigged up a pulley system connecting a 40- square-metre (430-sq.-ft) ‘para-foil’ sail to a 4.5-metre (15-ft) obelisk in an endeavour to raise the stone from horizontal to vertical, using only the wind.
While some Egyptologists remain sceptical, it is known that other ancient cultures knew about kites—the Chinese used them as early as 1250 BC to deliver messages and to dump flaming debris on their enemies.
Researchers have discovered that the hexagonal cells that hornets build (as do wasps) for brood-rearing each have a tiny (1/10 mm) crystal of magnetic iron titanium oxide glued to the centre of the roof.
After discovering the remains of an ancient ‘Stone Age’ farmhouse, complete with living area, bedroom and kitchen, in Perthshire, Scotland, archaeologists concluded that the builders were skilled engineers.
As Dr Gordon Barclay, of Stirling University, said: ‘This is no shack that somebody has thrown up. It is an enormous, very sophisticated piece of engineering, built to last. … This proves that the Neolithic people were engineers as skilled and intelligent as modern man.’
This is the conclusion of several research groups who have re-examined fossil evidence and found glaring discrepancies. For example, 15 out of 29 genera thought to have died out in an ‘extinction event’ actually reappear higher up the fossil record—‘as much as 20 million years’ later. Described as ‘Lazarus taxa’, these species have forced paleontologists to completely revise ideas about ‘prominent mileposts in the geologic record’.
This casts grave doubt upon the whole method of ‘index-fossil’ dating. The year-long Flood of Noah’s day (around 4,300 years ago) and its aftermath accounts for most of the layers of fossil-bearing sedimentary rock all over the world. Thus ideas that rocks reflect millions of years of evolutionary history do not stand up to scrutiny.
For over 100 years, artists have wrongly placed dinosaur nostrils on top of their snout, perpetuating the reconstructions of 19th century scientists who had assumed that large dinosaurs must have lived in rivers, lakes and seas.
Although years later it was realized that sauropods were mainly land animals, the nostril position was not debated because in almost all cases only bone is fossilized, so paleontologists could only guess where the flesh went.
We indicated (Creation 18(3):7, Life on Mars? 19(1):19) that if bacteria should ever be discovered on Mars, they would likely be from Earth. Life cannot evolve from chemicals, and since the biosphere was created for man on Earth, it is highly unlikely that God created bacteria elsewhere.
Some evolutionists cite such examples as proof of evolution occurring. However, no new gene has arisen, but a damaged version of an existing one (G6PD). It is thus normally harmful to health, but in malaria-prone regions, the faulty gene is of some advantage. Sickle cell anemia is a similarly ‘useful’ defect (Creation Sickle-cell anaemia does not prove evolution! 16(2):40–41; Rats! Another case of sickle cell anaemia 17(2):44–45).
Staph bacteria swap genes
To the dismay of public health officials, researchers have confirmed what has long been suspected—that whole gene structures can jump from one bacterium to another.
This means that, for example, staph. bacteria (Staphylococcus aureus), which cause a variety of illnesses, can easily exchange genes with other bacterial strains.
The bacteria can therefore rapidly (within hours) acquire a resistance to many types of antibiotics.
Such gene swapping, or ‘horizontal gene transfer’, appears to happen much more frequently than microbiologists can yet explain.
Proceedings of the National Academy of Sciences USA, 17 July 2001, pp. 8821–8826.
Nature Science Update, <www.nature.com/nsu/010802/010802-7.html>, 2 August 2001.
Appearance of antibiotic-resistant strains by this mechanism is not ‘evolution’. This is because the genes conferring resistance already existed beforehand—i.e. there is no new genetic information.
Drugs confirm we’re relatives
The genetic closeness of the so-called ‘races’ has again been highlighted by research, this time in the area of prescription medication.
When new drugs are clinically trialled, researchers note a person’s ethnic origin, to see which groups will react to the drug differently from others.
However, a team of geneticists from London’s University College showed that directly looking at variable regions on the DNA was a better predictor of drug reactions than were ethnic origins. Although these small variations may correspond with ethnicity, often they do not.
One scientist says that ‘skin pigment is a lousy predictor of physiology’. Another says, ‘There is so much variability in a population, you cannot use [ethnicity] alone.’
<www.nature.com/nsu/011101/011101-7.html>, 3 January 2002.
The fact that there is as much, if not more, variation within than between any ethnic grouping should not surprise us—all people are closely related, by recent common descent from Noah’s family.
Confronted by the rate at which mountains are eroding away, geologists are altering their theories about mountain formation.
For example, the Appalachian and Blue Ridge mountains were thought to be 300 million years old, but if so, they would not be standing today, as erosion is calculated to reduce a mountain range by 90% of its height in 20 million years.
Consequently, geologists are now thinking that these mountains, which ‘should have eroded away 100 million years ago’ must somehow be renewing themselves, i.e. are still growing.
The Cincinnati Post, 7 December 2001, p. 22A.
A simpler explanation is to accept this (along with much other evidence) as indicating a young Earth, only thousands of years old, rather than millions. See Giant oysters on the mountain, p. 54.
In a recent article on snake evolution, two experts at Chicago’s Field Museum wrote:
‘The origin of snakes has recently become a paleontological “hot potato”?. Two groups of scientists have come to very different conclusions from studying the same fossils. Are there tests capable of rejecting either one of these alternative conclusions or will human interpretation always allow such differences of opinion?’ (emphases added).
Biologist, June 2001, pp. 110–114.
Most creationists would have few problems with either interpretation, in principle (even to the point of allowing for the possession of limbs in the past (Genesis 3:14)), for snakes remain snakes, with no evolution in the particles-to-people sense.
Note, however, the way in which different scientists, with the same evidence, cannot agree about relatively small changes that have led to today’s different snake species. This is normal in historical science, but is relevant to assessing evolutionary claims about completely new kinds of animals arising.