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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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Amazing Facts

Sponges Use Fiber Optics for Interior Lighting
November 20, 2002
51; Sponges are among the simplest of multicellular organisms, but they contain an advanced human technology: fiber optics.  In a case of reverse biomimetics, scientists have determined that one of the products of proud human engineering was already at work in a lowly sponge.     Fiber optical properties of sponge spicules was already known, […]
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Fossils

Soft Squid Ink Sac Claimed to Be 150 Million Years Old
August 20, 2002
51; The BBC News announced the discovery of a fossil squid with its ink sac still intact.  “The fossil, thought to be 150 million years old, was found when a rock was cracked open, revealing the one-inch-long black ink sac.”  The ink has been sent to Yale for analysis.  An article on the Daily Mail […]
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Dumb Ideas

Fishing for Darwinian Stories
June 20, 2002
51; Stickleback fish can learn from each other where the best food sources are.  This proves you brain’s remarkable learning abilities have their roots in fish heads, according to science news sources this week.  Science Daily said the findings by UK scientists “show that the cognitive mechanisms underlying cumulative cultural evolution may be more prevalent […]
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Amazing Facts

Amazing Animals on Parade
June 20, 2002
You have to admire animals.  They have tricks humans still need to learn, and possess technologies that engineers are striving to imitate. Spiders:  Don’t let the black widow scare you; it’s only a picture on Science Daily.  Scientists are amazed at how these animals produce one of the best dragline silks in spiderdom.  It is […]
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Dinosaurs

Ichthyosaurs Suddenly Appeared in Triassic Oceans
April 20, 2002
“Ichthyosaurs were a group of Mesozoic marine reptiles that evolved fish-shaped body outlines,” begins Ryosuke Motani (UC Davis) in the Annual Review of Earth and Planetary Sciences,1 in a paper on “Evolution of Fish-Shaped Reptiles… in Their Physical Environments and Constraints.”  But while much is said about their environments and constraints, little is said to […]
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