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Marine Biology

Spider Evolution: A Theory in Crisis
October 21, 2005
Sea spiders look so similar to land spiders, everyone would have thought they were related.  They differ, however, in several significant ways, said Graham Budd and Maximilian Telford in Nature:1  ’Their bodies are so slender that the digestive systems and gonads are squeezed into their limbs; they possess a forward-pointing proboscis with a terminal mouth; […]
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Fossils

Fossil Brachiopod Shows Soft Part Details
August 18, 2005
American and British paleontologists described in Nature1 the discovery of nearly complete brachiopods with calcified soft parts intact.  They exhibited intricate details never before seen in fossils of these organisms, sometimes called lamp shells.  Brachiopods, a type of marine animal that attached itself to the sea floor with a pedicle or stalk, were very abundant […]
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Mammals

Sharks and Beavers Inspire Humans
July 16, 2005
Animals never cease to amaze us with their clever solutions to problems that plague human technology.  EurekAlert told of work being done by the Society for Experimental Biology to emulate shark skin as a self-cleaning surface for boats; National Geographic News has pictures of the new product, and a comparison with shark skin.  The navy […]
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Intelligent Design

Sponge Bobs Upward in Respect
July 8, 2005
The simplest group of multicellular animals, the sponges, is not so simple.  “Researchers have long regarded sponges as the most primitive form of animal life,” wrote Helen Pilcher in Nature;1 “At first glance, sponges seem simple.  They have no gut, no brain, no obvious front or back, left or right.  Adults pump water through a […]
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Dumb Ideas

Haeckel Vindicated?  Parathyroid Glands from Gills?
December 7, 2004
“Human gland evolved from gills” trumpeted a BBC News science article without apology.*  It gives uncontested press to a team from King’s College that is claiming the human parathyroid glands evolved from gills.  This is claimed on the basis that they have similar functions (calcium regulation) and are located in the neck region.  Fish have […]
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Cell Biology

How Cells Build Hard Parts
July 26, 2004
You have rocks in your head, and it’s a good thing, or you would die of starvation and imbalance.  Living things have need of inorganic structures for various functions.  Can you name the mineral structures in your body?  The answer is: bone, dentin, enamel and otoliths.  The last three are specific to your head.  Dentin […]
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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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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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Dumb Ideas

Science Reporters Stretch the Truth on Limb Evolution Claim
April 5, 2004
Item: some fragments of bone were found from a road cut in Pennsylvania.  Conclusion: Darwinian evolution from slime to humans has been demonstrated again.  Sound far fetched?  Not if you are a science reporter for a typical news organization; this is common practice.     The bone this time is a humerus of a presumed […]
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Marine Biology

Sea Genes Multiply
April 4, 2004
A potential paradigm-shifting discovery has been made in the doldrums of the Sargasso Sea: there are many more genes in plankton than expected.  Craig Venter’s Celera team sampled the genetic content of microbes off the Bermuda coast, and in 1500 liters of surface seawater, found 1.5 million new genes.  Falkowski and de Vargas, writing about […]
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Amazing Facts

Respect the Conch Shell
February 19, 2004
Engineers and materials scientists seem to never run out of examples in nature that should fill us with awe.  In the Feb. 19 issue of Nature,1 Rosamund Daw brings our attention to the construction ability of the conch shell: Giant conches are seldom treated with the respect they deserve.  Their impressive shells are prized as […]
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Dating Methods

Hundreds of Whales Buried Suddenly in Diatoms
February 2, 2004
A remarkable fossil find has been found in Peru: 346 whales buried in diatomaceous earth. The preservation of the whales is so pristine and complete, the authors of the paper in the Feb. 2004 issue of Geology1 conclude that the whales had to be buried rapidly, in days or weeks. If so, it represents a […]
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Fossils

How Bambi Gave Rise to Moby Dick
December 20, 2002
The title of this entry, in Kipling Just-So Story format, is only slightly modified from an article from The Guardian, titled, “How Bambi evolved into Moby-Dick.”  This is not a joke; check on the link and see.     The article is about the latest fossil claimed to be ancestral to whales.  Hans Thewissen (Northeastern […]
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