Coral reef photo safari at Chicago’s Shedd Aquarium

I’m in Chicago with my nine-year old daughter and Shedd Aquarium was an important destination for us.  We spent much of our Aquarium time at the Wild Reef exhibit. 

The coral reefs of the world support about a quarter of our sea life, so they are immensely important, yet humans are destroying them in a wide variety of ways. 

                Shedd at Night.jpg

As important as the reefs are to world ecology, reef life is also stunningly beautiful.  You can see these communities up close at Shedd.  The irony is hard to ignore whenever you can view warm water life in Chicago while it’s bitterly cold outside. 

Shedd Aquarium does a wonderful job displaying its marine life.  It’s difficult to stop taking photos, if you have a digital camera. I took more than 100 photos, then deleted many of them, leaving about a dozen photos I liked.  The challenge is not finding beautiful scenes to photograph.  The Aquarium is full of such opportunities.  The challenges are the low light conditions (no flash photography allowed, for the protection of the animals), combined with the quick movements of some of the creatures.  Note:  I took all of these photos with a Canon A700, a modest consumer-grade digital camera that is about 2-years old.  Also, these photos are only minimally retouched.  Comparable scenes await anyone interested in traveling to Chicago to visit Shedd Aquarium.

Many of the organisms living at a reef look like underwater plants, but they are actually animals.  Those animals include the corals themselves…

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Teaching Evolution, the Battle for Florida

Now Florida has joined the Creationism debate. In brief: Florida’s public-school students for years have been studying "biological changes over time," but proposed revisions in state science standards would for the first time use another term for that concept: evolution. Let the games begin. Letter writers are up in arms…

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Texas Education Agency Science Expert Fired for Indirectly dissing Intelligent Design

In brief: Chris Comer, director of science curriculum, was pushed out after she sent an e-mail promoting a local talk by the author of "Creationism’s Trojan Horse: The Wedge of Intelligent Design". Comer merely sent a notice about the talk as an "FYI." The School board tried to claim that…

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The Making of the Fittest

I’ve just read a good book about genetics. The Making of the Fittest: DNA and the Ultimate Forensic Record of Evolution by Sean B. Carroll. There is much food for thought in this book. One reviewer called it “A Primer of Evolutionary Theory for Beginners”, and this is accurate. One doesn’t need to know chemistry or physics to follow his reasoning, because he teaches the most necessary pieces.

Basically, this book examines what has turned up in studying the genomes of various species over the last couple of decades, as well as tracing genes from generation to generation in the same family line. It starts with a simple introduction to what DNA is, how it works, and how we know this. Then it gradually leads one to understand how genes transform from one generation to the next, and how this leads to speciation.

Basically, ever-present radiation, random chemistry, and aggressive biology cause frequent single-letter changes in DNA. Also RNA copy-and-paste errors regularly drop or duplicate entire gene sequences. After this see Darwin for how some mutations are explicitly preserved, some are inevitably removed, and most simply languish in or become fossil genes because there is no preference one way or the other. Carroll covers all this in many examples.

Carroll presents the simple probability and large numbers theory to illustrate the surprising speed at which populations can change, and then shows functioning (or no longer functioning) genes that have in fact visibly changed populations so rapidly.

This book gives plenty …

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Of Values And Victims

Listening to a talk show at work yesterday, I heard some fall-out from the recent suicide of the young girl who had been “duped” on MySpace.  When I first learned of this tragedy, I ran through a series of thoughts about the dangers posed by the interfaces we use these days, which put us often too early and unprepared into contact with things in another era we would simply have had no opportunity to encounter.  This girl was a casualty of the wavefront of experience that comes now in new forms and through media that never before existed.  

I never once thought it was her fault.

How could you?  She’d been deceived.  Inexperienced, unwitting, she invested a bit too much, and it put her over the edge to discover that what she thought was “real” was in fact a deception.

History is full of examples of people committing suicide over things with only marginal reality.  Especially among adolescents.  We’ve learned in the last decade a great deal more about brain development than ever before, and one of those things is that adolescence is the time of some of the most intricate and fragile growth–physically–within the brain.  The hormone storm that is unleashed at the onset of puberty, the growth spurts visible in every other part of the body, the physiological changes of emergent sexuality and secondary sexual characteristics, all have their equivalent in cognitive development.  It makes perfect sense after the fact, but for a long, long time we blithely …

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