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Reach Out and Touch Some Robot

The news media were excited to report an advance in materials science last week that could pave the way for touchy-feely robots (see BBC News, News @ Nature, LiveScience and National Geographic News, for instance).  Two scientists produced a thin film with touch resolution comparable to that of a human finger, an order of magnitude […]

Foot Facts: Frogs and Flies Fulfill Feet Feats

How do frogs walk on wet leaves without slipping?  Eric Jaffe in Science News1 describes how they have dual-purpose footwear: a mucous film that holds on by wet adhesion, plus microscopic bumps that protrude above the wet layer to make dry contact.  Though a frog foot doesn’t appear as fancy as that of a gecko, […]

Domestic Housecat Trees Wild Bear

Donna Dickey has quite a watchcat.  This declawed tabby chased a roaming black bear up a tree and held it at bay for 15 minutes.  When the bear slid down to try to get away, Jack chased it, hissing and snarling, till the bear escaped up a second tree.  That’s when Donna called her cuddly […]

Beavers Achieve Environmental Reprieve

In what might be considered an unexpected convergence between geology and zoology, it has been found that beaver dams influence large tracts of land both above and below ground.  “Impact of beaver dams wider than thought” announced a headline on LiveScience summarizing studies by scientists in Rocky Mountain National Park.     The dams take […]

Hummingbirds: Small Wonders

Do you enjoy watching the world’s smallest birds, right from your backyard?  Susan Healy and T. Andrew Hurly provided interesting tidbits about them in a Quick Guide to Hummingbirds in Current Biology this week.1     There are 330 species of these small flyers noted for their aerobatics and iridescent colors.  Typically, they weigh a […]

Bioneers Update: International Conference Held on Animal-Inspired Design

Georgia Tech came out with a press release about progress at their Center for Biologically Inspired Design (CBID) that opened last year (see 10/29/2005).  At a two-day conference May 11-12, international representatives from 20 institutions shared their inspirations on how nature can “help them solve some of the most complex problems of the day,” just […]

Comparing Preferences for Pain or Gain

A group of researchers published in the Journal of Political Economy introduced the idea economic loss and gain incentives are innate, not learned.  To demonstrate this concept, the researchers presented capuchin monkeys two opportunities leading to two different outcomes for the monkey: pain or gain.  The capuchin monkeys had a tendency to choose the opportunity […]

Limbed Snakes Initiate Evolutionary Quandary

Researchers have discovered the fossil of a snake with a pelvis and functioning legs in Rio Negro, Argentina.  Sebastian Apesteguía (Argentine Museum of Natural Science) says Najash rionegrina is not the oldest snake discovered; marine snakes have been discovered in North America as well as Eastern Europe.  However, Najash rionegrina has been considered the earliest […]

What Use Is Half a Wing?

Ken Dial is at it again, trying to explain bird flight from the ground up with his own version of a Darwinian story (see 01/16/2003).  The title of his paper in BioScience1 harks back to an old criticism of Darwin’s theory: “What use is half a wing?”  Well, half a wing could be a half […]

Insects Lead the Way

Why engineer things from scratch, when we can imitate nature?  Two recent examples come from the world of insects.  A press release from UC Berkeley begins, “Using the eyes of insects such as dragonflies and houseflies as models, a team of bioengineers at University of California, Berkeley, has created a series of artificial compound eyes.”  […]

Walking Snake Bites the Dust

It must be missing link season.  MSNBC News announced a snake with rudimentary legs.  While exciting for evolutionary theory, it raises questions, too.  Snakes were supposed to have evolved in the water, not on land. Check out what Ken Ham said on Answers in Genesis about this latest salvo.  If the snake had legs, does […]

Imaginary Feathers Found on “Turkey” Dino

Last month, we reported on announcements of a dinosaur fossil with imaginary feathers (02/08/2006); at least, all the news stories mentioned feathers and some had pictures of them, but the original paper said nothing about feathers.  Now, National Geographic has done it again: “Giant Turkey-Like Dinosaur Found in Utah,” the title reads, with a picture […]

Fish-o-pod ‘Missing Link’ Discovered: Media Goes Nuts

Evolutionists could hardly feel more relieved.  Just when anti-evolutionary sentiment is on the rise, a new fossil has been announced that gives pro-evolutionists a missing link to run up the fishpole, and boy, did the media salute.  Neil Shubin (U of Chicago) and two partners found a “tetrapod-like fish” fossil on a Canadian island.  It […]

Experimental Biologists Look to Animals for Inspiration

Whether insects, fish, birds or mammals, animals have a lot to teach scientists and engineers.  Here are some recent stories that begin to answer, “How do they do that?” with hopes that humans might be able to mimic their feats. Hard sponges:  Aimee Cunningham in Science News (03/25/2006; 169:12, p. 184) described the astonishment Joanna […]

Spiders Rappel Without Getting Dizzy

How can spiders drop straight down their dragline silk without going into dizzying spins on the way down?  It’s because spider silk has “shape memory” and a resistance to twisting, due to its unique molecular structure.  Scientists tested three strong threads for shape memory: Kevlar thread, copper thread, and spider silk.  The winner was spider […]
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