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Birds

Sexual Selection Discounted in Toucan Bill
July 28, 2009
Darwin thought that the large bill of the toucan might be an ornament produced by his theory of sexual selection.  A new study says, rather, that the bill serves as a heat radiator the bird uses to control body temperature.  National Geographic News summarized a paper in Science that explained the process.1  The authors studied […]
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Genetics

Epigenetics Rising in Consciousness of Geneticists, Embryologists
July 27, 2009
The old story of genetics was that all the information is in genes, and when sperm and egg unite, it’s only the combination of genes from parents that affect the offspring.  That view has been under challenge for years now as geneticists and embryologists find more and more evidence for additional heritable factors that affect […]
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Uncategorized

Weekend Roundup
July 26, 2009
Here’s a quick collection of recent news articles bearing on questions of origins, morals, fossils, outer space, science, health and Darwin. Mars risks:  The dust on Mars may be toxic to humans.  New Scientist reported that evidence from the rovers shows the electrically-charged dust clinging to everything.  “If the dust is toxic and you bring […]
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Darwin and Evolution

Selfish Gene Mutates, Dies a Metaphorical Death
July 24, 2009
Richard Dawkins proposed in his book The Selfish Gene that a gene, being the target of natural selection and unit of replication, is the entity most likely to get passed on to posterity; as such, it is “selfish” in that the rest of the organism is really only incidental to its immortality.  Dawkins expanded this […]
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Biomimetics

Nanotech Blurs Line With Biophysics
July 24, 2009
Machines on the molecular scale – in the literature these days, one needs to dig to find whether a news article is talking about man-made machinery or the living cell.  Both employ laws of physics to do work.  Notice how seamless the connection is in the following examples. Kinesin tightrope walk:  Scientists at Northwestern University […]
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Cell Biology

Biological Big Bang: Another Explosion at the Dawn of Life
July 23, 2009
Eugene Koonin and two friends from the NIH went tree-hunting.  They examined almost 7,000 genomes of prokaryotes.  They found trees all right – a whole forest of them.  They even found 102 NUTs (nearly universal trees) in the forest.  Unfortunately, it’s not what they wanted to find: a single universal tree of life that Darwin’s […]
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Cell Biology

More Going On in the Brain Than We Realize
July 22, 2009
The news story about a girl who can see in both eyes with half a brain has stunned neurophysiologists (see New Scientist and Live Science).  Somehow, the remaining parts of her brain underwent a massive reorganization of the circuits involved in vision.  “It was quite a surprise to see that something like this is possible,” […]
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Amazing Facts

Systems Biology Oddly Silent About Darwin
July 21, 2009
Two papers on the rise of “systems biology” appeared in Nature last week.  Both are astounded by the complexity of the cell, but neither had anything to say about evolution, Darwin, or phylogeny – mildly surprising when the proponents of evolution keep saying that “nothing in biology makes sense except in the light of evolution.” […]
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Bible and Theology

Evolution’s Guiding Hand Is Far From Obvious
July 17, 2009
A recent example of applying evolutionism to everything was seen on Science Daily and PhysOrg last week.  Some psychologists are telling us that evolution taught us to take turns.  “It’s not just good manners to wait your turn — it’s actually down to evolution, according to new research by University of Leicester psychologists.”     […]
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Dumb Ideas

Aliens Are Not Bodybuilders
July 16, 2009
Seth Shostak of the SETI Institute is willing to bet “dollars to Devil Dogs that any extraterrestrials we detect won’t be muscular guys with deep voices and corrugated foreheads, or even big-eyed, hairless grays.”  It all has to do with the way evolution works.     In the weekly SETI column for Space.com, Shostak opined […]
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Amazing Facts

Dragonflies Are Marathon Champs
July 15, 2009
Step aside, monarch butterflies: some of your fellow insects beat your distance flying wings down.  The BBC News reported on findings by a biologist in the Maldives about dragonflies that migrate 14,000 to 18,000 km from southern India to East Africa and back – including 800 km over open sea.  How these insects can navigate […]
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Dumb Ideas

Stretching Out the Cambrian Explosion
July 14, 2009
“Dawn of the animals: Solving Darwin’s dilemma” is the confident-sounding title of an article about the Cambrian explosion in New Scientist.  Their solution, however, did not include finding transitional forms.  It revolved around “setting the stage” environmentally for the sudden appearance of complex animals.     Reporters Douglas Fox and Michael Le Page began by […]
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Early Man

The Early Man Gets the Big Brain
July 13, 2009
“Why are human brains so big?” asked Live Science.  Why are our brains larger relative to body size than almost all other animals?  Rachael Rettner reported on various answers.  To her credit, she pointed out the fallacies of trying to test hypotheses when there is insufficient evidence.     Rettner evaluated three hypotheses about why […]
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Dumb Ideas

Lightning Cooks Up Weird Science
July 13, 2009
Get a charge out of this headline from New Scientist.  A couple of scientists from University of Arizona studied fulgurites, the structures formed in sand by lightning strikes.  They found that they contain phosphites (oxidized phosphate molecules).  They theorized that lightning strikes could have provided phosphites which the primordial soup used to build RNA and […]
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Amazing Facts

A Rat Race to Build Whiskered Robots
July 11, 2009
Some scientists at Bristol Robotics Lab are pretty proud of themselves for building a robot with whiskers.  It can seek out and identify objects using its whiskers, just like rats do.  But they should still take their hats off to their living model, because the rat’s technology is far superior.  Science Daily mentioned several facts […]
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