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Dumb Ideas

A Turtle Missing Link: Are We Missing Something?
October 9, 2008
Everyone knows the iconic drawing of the parade of human evolution (see 09/23/2008 commentary); now, its turtle counterpart is making the rounds.  An article on New Scientist shows the march of progress from lizard to turtle.  The title says, “Fossil reveals how the turtle got its shell.”  Something is missing from the article, though: a […]
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Biomimetics

Living Better Bioelectrically
October 4, 2008
Electric eels are inspiring a new generation of fuel cells.  Science Daily reported that a remarkable fusion of engineering and biology may lead to tiny electronic devices that run on biology’s own energy currency, ATP.  “Engineers long have known that great ideas can be lifted from Mother Nature, but a new paper by researchers at […]
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Dumb Ideas

How the Evolution Story Became Like Jellyfish
September 30, 2008
“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 […]
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Birds

Did This Dino Have Bird Breath?
September 29, 2008
Birds are the only vertebrates with a unique one-way, flow-through breathing system that includes hollow bones.  Their unique respiratory system is part of the set of features that allows flying with its need for rapid metabolism.  Science news outlets are clucking wildly about another putative missing link between dinosaurs and birds: “Meat-eating dinosaur from Argentina […]
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Amazing Facts

Fastest Squirt Gun in the Fungi
September 26, 2008
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 = […]
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Botany

Trees Communicate with Aspirin
September 25, 2008
Plants communicate with each other through chemical signals. Scientists found a form of aspirin that works as a distress call.
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Terrestrial Zoology

Ant What it Used to Be
September 18, 2008
A new species of subterranean ant discovered in Brazil is so weird, biologists have classified it as the sole representative of a new subfamily.  The alien creature has been whimsically named Martialis heureka: “the ant from Mars.”  An article about it in Nature News said, “It adds a new branch to the ant family tree […]
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Amazing Facts

Animals Got Rhythm; Scientists Don’t
September 12, 2008
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 […]
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Birds

Flightlessness Evolved Four Times
September 10, 2008
An article on Science Daily claims that the famous flightless birds – African ostriches, Australian cassowaries and emus, New Zealand kiwis and South American rheas – are unrelated.  There was no flightless common ancestor.  They lost their ability to fly independently, scientists say, because of “parallel evolution.”     This would also mean that emus […]
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Amazing Facts

Butterfly Wings Xeroxed
September 6, 2008
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 […]
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Fossils

Fully Gecko 40 Million Years Earlier?
September 3, 2008
Amber, or fossilized tree sap, usually contains remnants of insect parts.  One piece, mined in the jungles of Myanmar, contained the foot of a gecko – alleged to be 100 million years old.  That’s 40 million years older than the previously claimed oldest gecko fossil.  This critter may have skittered under the feet of dinosaurs.  […]
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Amazing Facts

Plant Perfume Manipulates Pollinator Behavior
August 31, 2008
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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Amazing Facts

Use Your Cow Compass
August 25, 2008
Cattle and deer seem to align themselves to magnetic north.  German and Czech scientists, reporting in PNAS,1 used aerial observations to detect the tendency of grazing herds to line up in north-south directions.  The alignment was to magnetic north, not true north—indicating a sensitivity to earth’s magnetic field, as known to exist in migrating birds, […]
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Amazing Facts

How Chromosomes Pack Without Exploding
August 24, 2008
When preparing to divide, a cell has to copy all its DNA accurately and pack it into chromosomes.  A professor at U Chicago told Science Daily this is “like compacting your entire wardrobe into a shoebox.”  The cell has another difficulty in this compaction process, though: DNA, being negatively charged, resists packing.     Eukaryotes […]
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Amazing Facts

New Camera Imitates Eyeball
August 7, 2008
Scientists at the University of Illinois and Northwestern University have succeeded in manufacturing stretchable optical electronic sensors on curved surfaces.  This will open up a whole new world of new imaging products – inventions that imitate the human eyeball.  The team said this about the eyeball in their paper in Nature:1  The human eye is […]
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