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Reducing Human Behavior to Natural Laws

Can human behavior be reduced to natural laws that science can study in a morally neutral way?  Darwin sought to incorporate all aspects of the living world, including behavior, in natural laws that were amenable to scientific explanation.  Evolutionary biologists and neuroscientists continue in that tradition today.  Consider two recent examples in the literature that […]

Brain Candy as Tiger Milk

Observation: the human brain appears able to use lactate as fuel instead of glucose during strenuous exercise (see Science Daily).  Deduction: From an evolutionary perspective, the result of this study is a no-brainer.  Imagine what could have or did happen to all of the organisms that lost their wits along with their glucose when running […]

How the Evolution Story Became Like Jellyfish

“How the [blank] got its [blank]” is the template for story titles imitating Rudyard Kipling’s Just-So Stories: i.e., How the Camel Got His Hump and How the Leopard Got His Spots.  Kipling wrote these as silly stories to entertain children, not to be taken seriously by scientists.  Knowing that creationists often criticize Darwinian explanations as […]

Fastest Squirt Gun in the Fungi

A paper on PLoS One described the highest-speed flights in all nature: the spore discharge mechanisms in certain fungi.  A dozen scientists in Ohio worked to capture the action on ultra-high-speed cameras.  It took 250,000 frames per second to reveal how fast the projectiles accelerate.  The answer: from 20,000 to 180,000 g (where g = […]

Trees Communicate with Aspirin

Plants communicate with each other through chemical signals. Scientists found a form of aspirin that works as a distress call.

Leaves Don’t Fall; They’re Pushed

Rocks may fall (thus the need for warning signs on highways), but leaves are pushed off of trees by a genetic program.  The process, called abscission, has been mysterious for a long time.  A team from the University of Missouri has mapped out, for the first time, the abscission pathway in one plant.  Being this […]

Liberals Less Skittish than Conservatives, Study Claims

A study by scientists at University of Nebraska claims that conservatives are more easily startled than liberals, reported National Geographic News.  The results, partly funded by the National Science Foundation and published in Science,1 referenced a 2006 paper from Evolution and Human Behavior that had claimed “feelings of disgust and fear of disease have been […]

The Prevolution of Evolution: Life Marches In

There’s a new word preceding the E word evolution.  Two Harvard scientists have made up a new word, prevolution, to describe a supposed stage before replication when natural selection was helping evolution evolve.  What does prevolution act on?  Simple, silly: prelife.     Martin Nowak and Hisashi Ohtsuki titled their paper in PNAS, “Prevolutionary dynamics […]

Turing Test Stands: Your Brain Outperforms Computers

What is the speed of thought?  Computer speeds are measured in megahertz and gigahertz, but that’s only part of the story.  The ability to compute an answer to a problem depends on the programming, too.  How does the brain compare with our best computers?  A scientist from UC San Francisco and one from the Salk […]

Star Death Amazing – but Puzzling

Twinkle, twinkle, little stBOOM!  The explosions of some dying stars are so powerful yet so rapid, mere measurements seem inadequate to describe them.  Two death-star events were reported in recent articles.  Despite the bravado of textbook orthodoxy, the articles both mentioned that astronomers really don’t understand what’s going on all that well.     Eta […]

Animals Got Rhythm; Scientists Don’t

Here’s a biological puzzle with plenty of room for young researchers to solve: the workings of biological rhythms.  All animals respond to rhythms in periods of hours, days, weeks, months, and years, but as George E. Bentley (UC Berkeley) wrote in Current Biology,1 how they do it is only partially understood.  “Sometimes the questions are […]

Butterfly Wings Xeroxed

If you can’t build it, copy it.  Scientists have had a hard time reconstructing the photonic crystals that make butterfly wings shimmer with light (01/29/2003), so they made, in effect, a carbon copy.  PhysOrg described how scientists at Penn State made impressions of the regularly-spaced geometric shapes from a butterfly wing and transferred it to […]

Spore Game: Evolution or ID?

Spore is a highly-anticipated computer game that just came out.  Evolutionists are claiming it as a model of how life evolves – but intelligent-design advocates are calling it an ID game, pure and simple.  Who’s right?     Carl Zimmer, a science writer, is among those counting Spore points for Darwin.  His blog entry from […]

Cellular Machines Work Like Cameras, Winches and Turboprops

The discovery that cells are filled with molecular motors is one of the major achievements of late 20th-century molecular biology.  Biochemists routinely use the word “motor” when describing cellular processes, because, in fact, machines made of protein actually do use energy to perform work.  Now we have a new hybrid science – biophysics – that […]

Plant Perfume Manipulates Pollinator Behavior

You’re a plant, stuck in the ground.  Around you are organisms with wings flitting freely about.  You need to get them to land on your flowers, but not linger too long.  How do you do it?  Attract them with sweet smells, but send them away with a bitter aftertaste.  That’s how the tobacco plant manipulates […]
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