Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

The Scabbardfish sees blue (is evolution or design the best explanation for this unique adaptation?)
Science Literature ^ | October 23, 2009 | David Tyler, Ph.D.

Posted on 10/23/2009 8:18:40 AM PDT by GodGunsGuts

Shallow water light ranges from the ultraviolet to red (wavelengths 360 nm - 650 nm). Going deeper, the extremes disappear and the spectrum narrows to a blue (approx 480 nm). Of the fish species whose colour vision has been tested to date, all except one can see in the ultraviolet (UV). The exception is the scabbardfish, which is the subject of a new research paper. The authors find that the fish that are sensitive to UV have a pigment that absorbs UV light, but the scabbardfish lacks this pigment and has, instead, a pigment that is violet-sensitive.

The scabbardfish (Lepidopus fitchi) is now the only fish known to have switched from ultraviolet to violet vision, or the ability to see blue light.

The researchers have looked at the molecular structure of the relevant pigments and their absorption spectra...


(Excerpt) Read more at arn.org ...


TOPICS: Culture/Society; News/Current Events; Philosophy; US: Georgia; United Kingdom
KEYWORDS: biology; catholic; christian; creation; evangelical; evolution; intelligentdesign; marinebiology; protestant; science
Navigation: use the links below to view more comments.
first 1-2021-4041-57 next last

1 posted on 10/23/2009 8:18:40 AM PDT by GodGunsGuts
[ Post Reply | Private Reply | View Replies]

To: GodGunsGuts

Evolution.
Next question?


2 posted on 10/23/2009 8:27:45 AM PDT by xcamel (The urge to save humanity is always a false front for the urge to rule it. - H. L. Mencken)
[ Post Reply | Private Reply | To 1 | View Replies]

To: metmom; DaveLoneRanger; editor-surveyor; betty boop; Alamo-Girl; MrB; GourmetDan; Fichori; ...

Ping!


3 posted on 10/23/2009 8:30:20 AM PDT by GodGunsGuts
[ Post Reply | Private Reply | To 2 | View Replies]

To: GodGunsGuts
There is a design-orientated way of approaching these data. What if organisms are designed to vary so that they can adapt to changes in their environment? In such cases, mechanisms for fine-tuning can be understood as designed mechanisms, thereby shifting the focus away from the biological world being the product of chance + necessity and towards a world resulting from purposeful intelligent agency.

"What if" is not scientific evidence. One needs to adopt hypotheses and collect data to evaluate them.

For some reason, ID advocates want their position accepted without carrying out the necessary step of experimentation. It's an approach that will never succeed in convincing large numbers of scientists.

4 posted on 10/23/2009 8:30:22 AM PDT by freespirited (Liberals are only liberal about sex & drugs. Otherwise, they want to control your life. --DHorowitz)
[ Post Reply | Private Reply | To 1 | View Replies]

Comment #5 Removed by Moderator

To: xcamel

It according to the article, this isn’t “evolution” but “adaptive change involving the change of a single amino acid in the opsin protein.”.

Don’t you know anything, evolution and adaptive change aren’t the same thing.

:->


6 posted on 10/23/2009 8:33:24 AM PDT by mnehring
[ Post Reply | Private Reply | To 2 | View Replies]

To: GodGunsGuts

Design from inception, then evolution.


7 posted on 10/23/2009 8:34:25 AM PDT by onedoug
[ Post Reply | Private Reply | To 1 | View Replies]

To: xcamel

The premise of this and similar “creationist” articles is that belief in god and evolution are incompatible. We know this is incorrect.

The barrage of articles continues so that the quality of FR will be degraded. I have no other explanation.


8 posted on 10/23/2009 8:41:36 AM PDT by Tax Government (Mighty nuts from tiny Acorns grow.)
[ Post Reply | Private Reply | To 2 | View Replies]

To: freespirited
Darwin's Origins was a giant "what if"...or in the words of the title of Earnst Mayr's book, Darwin's Origin represented "One Long Argument" for a non-design explanation for the origin of species. Creation and Intelligent Design also represent arguments for the origin of species. The question is, which argument is the best explanation of the available data.
9 posted on 10/23/2009 8:42:31 AM PDT by GodGunsGuts
[ Post Reply | Private Reply | To 4 | View Replies]

To: Tax Government; xcamel
The barrage of articles continues so that the quality of FR will be degraded. I have no other explanation.

I know this isn't the OP's intent, but, just like that poll someone posted the other week, it shows that the diversity of thinking on the right is much greater than the left stereotypes. In these articles that are posted, you have a wide range of debate on the issue, from the OP's 5k year old earth theory, to traditional science, to old earth ID'rs and TE'rs.

10 posted on 10/23/2009 8:44:35 AM PDT by mnehring
[ Post Reply | Private Reply | To 8 | View Replies]

To: reagan_fanatic

To paraphrase Shakespeare...that is indeed the question!


11 posted on 10/23/2009 8:44:50 AM PDT by GodGunsGuts
[ Post Reply | Private Reply | To 5 | View Replies]

To: Tax Government

I agree completely.


12 posted on 10/23/2009 8:46:51 AM PDT by xcamel (The urge to save humanity is always a false front for the urge to rule it. - H. L. Mencken)
[ Post Reply | Private Reply | To 8 | View Replies]

To: GodGunsGuts

There’s a difference. Darwin collected reams of information.

But even more important IMO is that science has come a long way since then. The modern synthesis of evolutionary theory is not dependent on Origins alone; that it is so widely accepted is a consequence of an enormous amount of experimentation consistent with the scientific method.

It’s incumbent on ID advocates to test their ideas and publish the data. They will never succeed in their goals if they continue to conduct their efforts as if they are exempt from the process that everyone else in science is expected to follow.


13 posted on 10/23/2009 8:50:11 AM PDT by freespirited (Liberals are only liberal about sex & drugs. Otherwise, they want to control your life. --DHorowitz)
[ Post Reply | Private Reply | To 9 | View Replies]

To: GodGunsGuts
The results indicated that scabbardfish shifted from UV to violet vision by deleting the molecule at site 86 in the chain of amino acids in the opsin protein.

DING DING DING......EVOLUTION HAS A WINNER!!!! There's a freakin' amino acid missing. Now how does an amino acid go missing? Long ago, before there was this specific scabbardfish, there was a similar fish that had a "deletion" that was passed on to its offspring......who ended up missing one amino acid in the peptide chain of a specific protein causing the fish to see differently.

That proves that Man walked the Earth with 100+ species of large meat eating dinosaurs.

14 posted on 10/23/2009 8:57:37 AM PDT by ElectricStrawberry (Didja know that Man walked with vegetarian T. rex within the last 4,351 years?)
[ Post Reply | Private Reply | To 1 | View Replies]

To: freespirited
Actually, if your actually read Origins it lacks the data to establish macroevolution. All Darwin did was notice minor changes within certain types of organisms, and then extrapolated that into a macroevolutionary theory. Indeed, his one chart in the entire book, in which he tries to establish a hypothetical "tree of life" (which, btw, has since been falsified by science), lacked any data points whatsoever!
15 posted on 10/23/2009 9:05:14 AM PDT by GodGunsGuts
[ Post Reply | Private Reply | To 13 | View Replies]

To: GodGunsGuts

Please re-read my post. I pointed out that the widespread acceptance of modern evolutionary theory is not the result of a single book, but of an enormous body of scientific work that followed.

ID advocates need to provide a similar body of experimental data in support of their position. A list of complaints about evolutionary biology is not a scientific theory.


16 posted on 10/23/2009 9:10:02 AM PDT by freespirited (Liberals are only liberal about sex & drugs. Otherwise, they want to control your life. --DHorowitz)
[ Post Reply | Private Reply | To 15 | View Replies]

To: mnehring
It wasn't a "change" of a single amino acid....it was the DELETION of a single amino acid. That requires a deletion of an entire codon, not just adapting to an environmental stimulus.

according to the article...

You mean "according to an ID theorists perversion of the original research"???

Mayhaps you should read the PRIMARY SOURCE instead of listening to a biased writer twisting the primary source to fit his theology.

17 posted on 10/23/2009 9:10:17 AM PDT by ElectricStrawberry (Didja know that Man walked with vegetarian T. rex within the last 4,351 years?)
[ Post Reply | Private Reply | To 6 | View Replies]

To: xcamel

I assume we’ll be eating them next like the trash fish Talapia?


18 posted on 10/23/2009 9:12:03 AM PDT by Scythian
[ Post Reply | Private Reply | To 2 | View Replies]

To: GodGunsGuts
As I said, I do appreciate the understated:

“Evolutionary biology is filled with arguments that are misleading, at best,” Yokoyama says.”

But I also appreciate the work of the researchers bringing to light more examples of our Creator's works.

19 posted on 10/23/2009 9:14:43 AM PDT by count-your-change (You don't have be brilliant, not being stupid is enough.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: freespirited

“What if” is not scientific evidence.”

It is when a scientist uses it, along with other proofs like, “possibly, somehow, and if, not clear, details missing”.
And my favorite, “further study is needed”.


20 posted on 10/23/2009 9:24:18 AM PDT by count-your-change (You don't have be brilliant, not being stupid is enough.)
[ Post Reply | Private Reply | To 4 | View Replies]


Navigation: use the links below to view more comments.
first 1-2021-4041-57 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson