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Is Natural Selection Losing its Appeal?

Some recent science reports sound like they are ready to cast Darwin’s key phrase natural selection overboard, or at least demote it from its leading role in evolution.  These articles each hint that long-held beliefs are being challenged. Make room:  Science Daily asked, “Natural Selection Not The Only Process That Drives Evolution?”  Scientists at Uppsala […]

Feather Evolution Proved?

Another claim of feather evolution was reported in PNAS.1  Creationists have long claimed that the evolution of feathers from reptilian scales is an intractable problem for Darwinists (example: 1994 article from Creation magazine).  Does the paper provide incontrovertible proof that feathers had evolved in dinosaurs before birds took flight in the air?     Beipiaosaurus, […]

Minerals Can Fool Astrobiologists

Look at this picture on National Geographic News.  Looks alive, doesn’t it?  It’s only a mineral.  The article contains a gallery of five micrographs of minerals that form curvy crystals.  They’re called biomorphs (a word simply meaning life-like shapes).     “Until now scientists had thought rounded crystals, such as those found in seashells and […]

Biology Now Includes Fluid Dynamic Construction

There’s an old legend that Tibetan monks built a wall by levitating heavy stones with sound by beating their drums and gongs.  Something not quite so fantastic but still amazing is done by cells in the embryo.  Scientists have filmed zebrafish embryos using beating cilia to build little stone structures that they use for balance. […]

Watch for Flying Giraffes (and Convergent Evolutionists)

Imagine giraffe-sized animals that could fly.  They lived.  National Geographic News has an illustration of an extinct pterosaur, tall as a giraffe, that was able to leap into the air and flap its wings for sustained powered flight.     Live Science discussed work by Michael Habib [Johns Hopkins U School of Medicine] on the […]

Darwin Missed the Pink Iguanas

The news media are excited about pink iguanas found in the Galapagos Islands.  The rare type was discovered accidentally in 1986 but received almost no attention till now.  Reports with pictures can be found on Live Science, PhysOrg, New Scientist and the BBC News, based on the paper by Gentile et al in PNAS.1   […]

Nature Struts Darwin Gems

Like a showcase of pearl-handled revolvers, an armory of evidences Nature calls “Darwin’s Gems” have been exhibited to warn creationists that Darwin Day will be defended next month with a show of force.  The authors, Henry Gee (former editor of Nature), Rory Howlett and Philip Campbell have made their 15 Evolutionary Gems freely available “and […]

Handy Motor Found in Virus

Your job today is to stuff a delicate chain into a barrel without breaking it and make it wrap neatly inside.  A tiny virus does this with helping hands, reported Purdue University.  A research team uncovered the mechanism of a “powerful molecular motor” that crams the viral DNA tightly into the capsid with the help […]

Bat Evolution: The Play’s the Thing

According to the Darwinian script, each animal evolved its particular adaptations from an ancestor lacking those adaptations.  Take bats.  They must have evolved their wings and sonar from mouse-like ancestors that lived on the ground.  Is it enough to imagine these things, or should we expect science to provide evidence that is what really happened? […]

Blame Hiccups on Your Inner Fish

Why do humans get hernias and hiccups?  Neil Shubin says it’s because of your inner fish.  In the Scientific American series on Darwin, the discoverer of Tiktaalik was trying to show how evolutionary theory sheds light on human anatomy.  He looked back to fish and amphibians and found insight.     “A glimpse inside the […]

Evolutionary Mutualism Flutters

A story on Science Daily is decorated with a butterfly collection.  Amazonian butterflies studied by an international team were chosen to test Darwin’s theory of mutualism – a kind of symbiosis in which two species benefit one another.  The test yielded a surprise.     The idea going in was that sister species would evolve […]

Fish and Reptiles Converge on Magnetic Navigation

Two very different kinds of animal both have outstanding ability to navigate by earth’s magnetic field: salmon and sea turtles.  A new hypothesis by scientists at University of North Carolina at Chapel Hill, published in PNAS,1 suggests that the young are “imprinted” with their local magnetic field signature at birth. From a navigational perspective, some […]

Fly Swiftly

The common swift is being eyed by aircraft engineers who want to go fast, high, and green.  Science Daily says these engineers are “inspired by nature.”     Calling Apus apus a common “swift” is like calling an orange an orange.  They are swift!  These incredible birds dart about effortlessly and spend their lives almost […]

Thanks to Clam Design, Stronger Materials Are Coming

Scientists at Lawrence Berkeley National Labs have produced a lightweight composite material 300 times stronger than its constituents.  How?  By taking inspiration from clams.     The team, writing in Science,1 described nacre, the shiny mother-of-pearl found inside clam shells.  Because of the way it sandwiches crystalline aragonite with layers of protein (07/26/2004), nacre resists […]

That Spring in Your Step Is Semi-Automatic

Cross-country runners know the challenge of running on uneven terrain.  What they may not know is that they are executing one of the most difficult operations for robot designers: how to make an upright, walking machine make rapid decisions on irregular surfaces without falling.     Monica Daley of the Royal Veterinary College wrote about […]
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