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Fossils

New Book Reveals China’s Cambrian Explosion
July 22, 2004
Nature July 221 has a book review about the first volume in English of the Chengjiang biota of China, where tens of thousands of soft-bodied organisms are preserved in early Cambrian strata.  The book, The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life by Xian-Guang Hou et al., is praised by reviewer […]
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Marine Biology

1400 Genes Essential to Grow a Fish
July 16, 2004
A team from MIT scanned the genome of the zebrafish and concluded there are about 1400 genes essential for embryonic and early larval development.  They did hands-on mutation experiments with 315 of these and found that mutations usually produced visible defects within 5 days that were invariably lethal.  Estimating that they had experimented on about […]
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Amazing Facts

Sparrows Do the Long Haul Without Sleep
July 13, 2004
During their 2600-mile migrations from Southern California to Alaska, white-crowned sparrows fly day and night without sleep for days on end.  Apparently they don’t have to fly on automatic pilot.  Science Now tells about a University of Wisconsin psychiatrist who watched captive sparrows during their migratory period.  The birds seemed alert and in no way […]
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Terrestrial Zoology

Angry Evolutionist Seeks to Revive Peppered Moth Story
June 25, 2004
Michael Majerus has had it with creationists who leaped onto his 1998 book and used it for ammunition against Darwinism.  He had confessed that the simplified textbook story of the peppered moth was inaccurate, but he never meant to cast doubt on evolution.  Majerus (U. of Cambridge) is highlighted in a profile in the June […]
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Amazing Facts

Spiderman No Match for Real Spider
June 24, 2004
National Geographic News took the occasion of the upcoming Spiderman sequel to investigate the superpowers of real spiders.  If you were spidy, you could: Jump 50 times your body length.  That would be like a man jumping 300 feet (the world record is 29 feet, 4.5 inches). Walk upside down on smooth surfaces, with 170 […]
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Marine Biology

Cleaners Advertise in the Fish Market
June 22, 2004
The plot of this science project seems made for Disney animation, a fishy version of Aesop’s parable of Androcles and the lion.  There are fish that will clean parasites out of the mouths and gills of their predators without getting eaten (see 01/13/2003 headline).  How these “cleaner fish” and their clients developed this risky relationship, […]
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Marine Biology

Stickleback Fish Achieve Stardom in Evolutionary Labs
June 18, 2004
According to Elizabeth Pennisi in Science June 18,1 the three-spine stickleback is being studied in 100 labs as a model of evolution.  Over the last century, the little fish has been the subject of some 2000 papers, seven textbooks, and a Nobel prize-winning thesis.  Evolutionists have been attracted to this fish because it appears to […]
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Botany

Fungi Supply Plant Communities With Underground Nutrient Pipeline
June 17, 2004
Dig up a cubic yard of soil, and you may have disturbed 12,000 miles of an extensive network of passageways that supply plant roots with carbon, nitrogen, and phosphorus.
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Mammals

Talk to Your Dog: He’s Listening
June 10, 2004
Science Now and Nature Science Update both describe a border collie named Rico that can identify 200 objects by name.  The dog exhibits the same “fast-mapping” skill of a three-year-old child learning to associate sounds with objects.  The owner calls out “dinosaur” and the dog picks up the blue dinosaur toy.  He calls “doll” and […]
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Amazing Facts

Hippos Sweat Their Own Sunscreen
May 25, 2004
You know that reddish fluid on hippo skin that turns brown?  It’s not just funny colored sweat.  Japanese scientists reported in Nature1 that it acts as a sunscreen and an antibiotic.  See also the BBC News report on this finding. 1Saikawa et al., “Pigment chemistry: The red sweat of the hippopotamus,” Nature 429, 363 (27 […]
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Bible and Theology

Humans and Chimps Compared
May 25, 2004
In case you had an identity crisis last time at the zoo, Current Biology can provide psychoanalysis.  The May 25 issue posted two articles side by side: one, simply entitled “Humans,”1 and the other, “Chimps.”2  Various comparisons are contrasts are drawn, including a few surprising facts, such as this statement: “Based on relative amounts of […]
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Amazing Facts

Cormorant Eyes Rapidly Refocus in Dives Into Murky Water
May 24, 2004
You’re hang gliding over a lake, and you spot a fish below.  From your hovering position, you drop into a rapid, steep dive headfirst into the water.  Whoops; your eyes just went out of focus, and you lost your fish in the murky depths.  Too bad you’re not a cormorant.     Cormorants (a kind […]
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Terrestrial Zoology

Fruit Flies Fail to Exhibit Neo-Darwinism
May 18, 2004
The Neo-Darwinian Synthesis is the current reigning paradigm of Darwinian evolution.  It teaches that random genetic mutations provide the raw material of variation, and that natural selection acting on these variations produces all the complexity of life.  A corollary is that mutation is independent of selection; i.e., that mutations do not “conspire” with natural selection […]
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Terrestrial Zoology

Search for Evolutionary Trade-Offs Comes Up Empty
May 11, 2004
Husbands and wives know a lot about trade-offs, but according to Darwinian theory, all living things are in a constant tug-of-war between competing interests.  In evolutionary terms, a trade-off is a compromise between competing forces of natural selection.  For instance, “Simultaneously obtaining enough food to grow and reproduce while trying not to become someone else’s […]
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Amazing Facts

Whale Flippers Inspire Aeronautical Engineers
May 11, 2004
Have you seen the bumpy flippers on humpback whales, you know, the species whose males serenade their mates?  Don’t laugh.  Scientists have found that the ungainly flippers actually have superior lift, less drag, and are less susceptible to stalling.  Engineers are imitating the whale flippers for advanced aircraft and helicopter rotors, reports EurekAlert from studies […]
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