Blog – Page 472

VIEW HEADLINES ONLY

Rotary Clock Discovered in Bacteria

May 17, 2005

What could be more mechanical than a mechanical clock? A biochemist has discovered one in the simplest of organisms, one-celled cyanobacteria. Examining the three complex protein components of its circadian clock, he thinks he has hit on a model that explains its structure and function: it rotates to keep time. Though it keeps good time, […]

Mammals

New Rodent Discovered in Southeast Asia

May 16, 2005

“To find something so distinct in this day and age is just extraordinary,” says Dr. Robert Timmons of a stubby-legged, hairy rodent discovered in Thailand. “For all we know, this could be the last remaining mammal family left to be discovered.” It’s not exactly like a squirrel, rat, chinchilla or guinea pig: it belongs in […]

Cell Biology

Can Gene Duplication Promote Evolution?

May 15, 2005

Imagine you had no mouth but needed to eat. A hamburger comes flying at you. When it hits your body, your skin folds around it and pinches off, sealing it inside. Dozens of 3-armed parts form a geodesic dome around it and carry it to the stomach. Once delivered, all the parts are recycled for […]

Education

Heat and Light Emitted in Collisions of Darwin vs ID

May 13, 2005

Rhetoric over evolution is increasing in the media largely because of the school board debates in Kansas (see 04/29/2005 entry and previous Education links). The largely pro-Darwin press seems to be giving a little more coverage to the ID side; the anti-Darwin alternative media are getting more bold about asserting their views. MSNBC News says […]

Intelligent Design

Stanford Student Debate: Is Intelligent Design Science?

May 13, 2005

Michael Behe, author of Darwin’s Black Box, spoke recently at Stanford. This led two students to publish reviews, one pro and the other con, about intelligent design in the Stanford Review. Tristan Abbey asked, “Are Darwinists Chickens?” for their reluctance to allow critical scrutiny of their theory. Paul Laddis tried to debunk irreducible complexity in […]

Uncategorized

Weird Jellyfish Eyes: Are They Missing Links?

May 13, 2005

“Missing Link?” asks the cover of Nature May 12, next to what looks like an alien head with a giant eye staring out. The article by Nilsson et al.1 suggests that the box jellyfish has optical sensors that could represent primitive eyes that evolved before the more advanced eyes of vertebrates. Most of us don’t […]

Solar System

How Privileged Is Our Planet?

May 13, 2005

Several recent news stories touch on the uniqueness of Earth. Eccentric neighbors: A story in Science Daily draws attention to the highly eccentric orbits of most extrasolar planets found so far. The press release from Northwestern University begins, “Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason […]

Terrestrial Zoology

Honeybee Dance Wins Ovation

May 13, 2005

In the 1960s, Karl von Frisch announced the surprising discovery that scout honeybees announce detailed information to their hivemates about food sources with a “waggle dance”. This information, conveyed via the dance’s vigor and angle, tells recruit bees what angle to fly relative to the sun, how far to go, and how good the food […]

Human Body

Your Eyes Do Layered Image Processing

May 12, 2005

Computer users familiar with Photoshop and other image processing programs know that an image can be divided into “layers” for making color corrections, evening out contrast and enhancing details. Your eyes do that, too, says Alan Gilchrist in Current Biology.1 He shows a stunning optical illusion to make the point: transparent chess pieces against differing […]

Botany

David Attenborough Finds Living Fossil Tree Romantic, Not Devastating

May 12, 2005

England’s famous Kew Royal Botanical Gardens is getting a Wollemi Pine, and David Attenborough, naturalist and evolution popularist, is proud of it. This “living fossil” was thought extinct for 200 million years, but was found alive and well a few years ago in Australia (see 12/15/2000 entry). Grinning like a kid at Christmas, […]

Origin of Life

Self-Replicating Robot: Is It Alive?

May 11, 2005

The news media are all excited about a cube-shaped robot that, when stacked in threes, can make a copy of itself. The device, invented by Hod Lipson of Cornell, was illustrated in Nature.1 For a video demonstration, see MSNBC News. The BBC News quotes Lipson claiming that this achievement “shows the ability to reproduce is […]

Uncategorized

Flower Sets Catapult Speed Record

May 11, 2005

An American team of two biologists and a physicist found that a common mountain flowering plant holds the plant acceleration record. Reporting in Nature,1 they calculated that the bunchberry dogwood flower propels its pollen at speeds approaching 14 mph when the catapult-like petals explode open, accelerating at 24,000 meters per second squared within 0.3 second. […]

Terrestrial Zoology

The Monarch Butterflies in the Flight Simulator, II

May 9, 2005

How much software can fit in a butterfly brain? Scientists are again amazed at the navigating ability of Monarch butterflies. In the 07/09/2002 entry, we reported about how Canadian researchers used a clever flight simulator to test Monarch butterfly navigation with reference to sun angle. Now, using an enhanced version of the earlier “butterfly flight […]

Education

Darwinians May Be Their Own Worst Enemy, Says Darwinist

May 6, 2005

Evolutionists have only themselves to blame for the rise of anti-Darwinian sentiment, says Michael Ruse in a new book, The Evolution-Creation Struggle (Harvard, 2005). Peter Dizikes reviewed this premise in The Boston Globe. By portraying evolution in overtly atheist terms with religious fervor, certain individuals like Richard Dawkins are creating a backlash, says Ruse. “This […]

Terrestrial Zoology

How Did Salamanders Migrate from North America to Korea?

May 6, 2005

Salamanders are not particularly thought of as world travelers. A new species of lungless salamander of the family Plethodontidae has been found in Korea. Almost all previous members were found only in North America. To EurekAlert, reporting on a paper published in Nature,1 this is comparable to “discovering pandas in California or kangaroos in Argentina.” […]

Posts by Date

[archives type="yearly"]