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Biomimetics

Butterfly Wing Veins Are Not in Vain
May 23, 2010
Inventors made an artificial butterfly modeled on the tiger swallowtail.  First they made the wing without veins.  It didn’t fly as well as when they added veins like the real butterfly, according to a short video clip in an article on New Scientist.  The veined wing provided more lift.     The inventors at Harvard’s […]
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Amazing Facts

Like Magic: Spiders Convert Fluid to Steel-Strong Silk
May 17, 2010
How do they do it?  Spiders spin their webs with such ease, but scientists know they are working a kind of material magic.  Inside the storage sac, the proteins act like a fluid.  Outside the spinnerets, that fluid turns into a structural rope that is stronger than steel, but elastic enough to absorb the energy […]
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Amazing Facts

Leapin’ Lizards: Giant Lizard Discovered
April 7, 2010
A large species of lizard unknown to science has been discovered alive and well in the Philippines.  The BBC News has a picture of the monster, a class of monitor lizard, that measures 2 meters from snout to tail.  That makes it about 2/3 the size of its famous cousin from Java, the Komodo Dragon.  […]
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Darwin and Evolution

Snakes Alive!  An Evolutionary Tale
April 3, 2010
Blind snakes that look like worms: they rule the world.  They’re everywhere.  Where did they come from?  “Blindsnakes are not very pretty, are rarely noticed, and are often mistaken for earthworms,” admits Blair Hedges, professor of biology at Penn State University.  “Nonetheless, they tell a very interesting evolutionary story.”  So reported Science Daily.  National Geographic […]
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Amazing Facts

Biomimetics: Science for Now
March 27, 2010
Do you want science that makes a difference in our lives?  Look at real plants and animals with real solutions to practical problems.  That’s where researchers are making amazing discoveries with practical spinoffs. Shellfish materials:  Strong, lightweight structures are coming, thanks to the imitation of oysters and shellfish.  PhysOrg reported that researchers at the University […]
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Amazing Facts

Beetle Pulls 1,141 Times Its Weight
March 23, 2010
Ever watch those contest shows for the World’s Strongest Man?  Compared to dung beetles, they’re wimps.  Scientists at Queen Mary, University of London found that the strongest beetle tested could pull an astonishing 1,141 times its own weight – “the equivalent of a 70kg person lifting 80 tonnes (the same as six full double-decker buses),” […]
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Amazing Facts

Fruit Flies: From Darwin to Design
March 13, 2010
The fruit fly Drosophila melanogaster is an icon of evolution.  Since the 1930s these poor little bugs have been mutated endlessly and watched for signs of Darwinian change.  So far, though, only useless mutants, unable to survive in the wild, have been produced.  Recently, scientists seem more enamored with their design.  Two recent articles had […]
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Amazing Facts

Flight Design: Flies and Birds Get it Wright
March 3, 2010
Parse the following sentence for logical consistency: “Just as the Wright brothers implemented controls to achieve stable airplane flight, flying insects have evolved behavioral strategies that ensure recovery from flight disturbances.”  That is the first sentence from a paper in PNAS yesterday about the stabilizers in fly wings.1  Ristroph et al just compared design principles […]
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Amazing Facts

Spider Hair: The Perfect Water Repellant Surface
February 24, 2010
To keep dry, make like a spider.  “Engineering researchers have crafted a flat surface that refuses to get wet,” began a press release from University of Florida.  “Water droplets skitter across it like ball bearings tossed on ice.  The inspiration?  Not wax.  Not glass.  Not even Teflon.”  The audience waits breathlessly for the answer.  “Instead, […]
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Amazing Facts

Life Is Smarter Than We Know
February 15, 2010
How can toads calculate?  How can cells without a brain or central nervous system figure out a balanced diet?  How can bugs navigate the wind for optimum flight time?  These are some of the questions that can arise from observations of the living world.  The more we learn about life, the more we find unexpected […]
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Darwin and Evolution

For His Birthday, Darwin Gets a Scrambled Arthropod Tree
February 12, 2010
If Darwin lost his tree last year (01/22/2009), it would seem any corrections or rearrangements would be academic.  Nevertheless, eight evolutionary biologists at Duke University tried rearranging one of the biggest branches on Darwin’s tree of common ancestry – the highly diverse group known as arthropods (animals with jointed appendages).  Arthropods comprise the largest number […]
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Darwin and Evolution

More Surprises for Darwin
February 11, 2010
It’s not uncommon for theories to have to deal with anomalies, but Darwinism sure seems to get more than its share.  Here are some recent examples. Fossils lie:  Fossils preserve unmistakable clues about past life, right?  Not so fast.  Nature reported that “Non-random decay of chordate characters causes bias in fossil interpretation.”1  The way early […]
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Amazing Facts

Life Masters Physics
February 10, 2010
Living things, especially cells, have mastered the forces of advanced physics in ingenious ways.  This ingenuity sometimes inspires physicists to try to copy it.  Here are some recent examples: Photosynthesis and quantum mechanics:  Nature reported that plants take advantage of quantum mechanics in photosynthesis.1  “The photosynthetic apparatus of cryptophyte algae is odd – its pigments […]
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Fossils

Incredible Preservation of Beetle Wings Found
February 9, 2010
Beetle wings with their original shimmering luster have been found preserved in fossilized peat in Japan.  The strata in which they were found have been labeled middle Pleistocene and dated at 600,000 years old.  Yet these same wings, when dried in the sun, lose their luster within hours.     The authors of the paper […]
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Amazing Facts

Spider Webs Are Precision Dew Collectors
February 4, 2010
Photographs of dew drops on spider webs are favorite targets for nature photographers, because they resemble strings of pearls on fine jewelry (example 1, example 2).  But did you know the reason dewdrops bead up so well on webs is due to the fine microstructure of the spider silk?  A team of Chinese scientists studied […]
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