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Old 03-02-05, 07:44 PM   #1
Gary D.
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Pythons grow bigger hearts at mealtimes

national Geo. news story

http://news.nationalgeographic.com/n...02_python.html
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Old 03-02-05, 07:48 PM   #2
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Yes. It's known that python's hearts shrink between meals, so it means that they must grown during meals (makes sense).

Nothing new there.

What could be new is the fact that pythons have FANGS (?!?) lol
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Old 03-02-05, 07:50 PM   #3
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Very interesting read
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Old 03-02-05, 07:52 PM   #4
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NICE CATCH JIMMY! HA HA
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Old 03-02-05, 08:41 PM   #5
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They are not incorrect by using the word fangs.

Main Entry: fang
Pronunciation: 'fa[ng]
Function: noun
1 a : a long sharp tooth: as (1) : one by which an animal's prey is seized and held or torn (2) : one of the long hollow or grooved and often erectile teeth of a venomous snake b : one of a spider's chelicerae at the tip of which a poison gland opens
2 : the root of a tooth or one of the processes or prongs into which a root divides
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Old 03-02-05, 08:50 PM   #6
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yea why wouldnt they have fangs lol
maybe somepeople didnt know about the heart. I know i didnt.
JUst because you know so much doesnt mean other people do.
Sorry, I just dont see why the comment was necessary.

peace

ws
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Old 03-02-05, 08:52 PM   #7
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well, that was one good bedtime read!
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Old 03-02-05, 08:55 PM   #8
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RMBOlton. Fangs are big, sharp teeth that need to STAND OUT from the others to be called such. When they are all the same size, there's no point in calling them fangs. They are just a bunch of big teeth...
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Old 03-02-05, 09:00 PM   #9
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Agree with jimmy.
By the way, MY burst was pointed at the "pros" of National Geographic for using "Fangs"
Although the dictionaries definition includes "teeth" most do not recognize that a row of teeth the same or similar size count as such.
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Old 03-02-05, 09:12 PM   #10
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I made a point not to interject my opinion David, take it up with the dictionary people as they did not use the word incorrectly.
The large pythons in question have long sharp teeth (considerably long when you look at skull morphology) that they use expressly for seizing and holding prey. Keep this fact in mind and look at the definition. I have no oppinion.

Edit: I'm not implying that their verbiage is correct (I said they are not incorrect, which is far from saying that they are correct). Note that tooth size varies in relation to location in a python's skull (larger in the front and smaller in the back).

Picture
People could argue that pythons have fangs and people could argue that they don't (due to the lack of heterogeneity in tooth morphology). Either way, it's impossible to say if National Geographic is right or wrong. I have no opinion.

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Old 03-03-05, 07:34 AM   #11
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Maybe the heart enlargement after meals is part of the reason that powerfeeding can shorten the life span of snakes.

Interesting read

Ryan
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Old 03-03-05, 07:45 AM   #12
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I don't think it matters if they say fangs or not....very interesting read for me too, i learn a few new things
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Old 03-03-05, 08:26 AM   #13
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That is seriously interesting! I never thought such a thing was possible in the sort of time frame they're talking about...
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Old 03-03-05, 08:43 AM   #14
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I did a quick library search, and found an electronic version of one of the papers they were talking about in that artilcle...I'll try to post a link to it, but it may not work. If the link doesn't work, and anyone would like to see the paper, I can email a PDF version...

http://jeb.biologists.org/cgi/conten...ct/203/16/2447

I know that this is old news to some people here, but some people might want to wade through the full story...

Last edited by kpugh; 03-03-05 at 08:47 AM..
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Old 03-03-05, 08:54 AM   #15
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Smart thinking, Ryan.
But Could be incorrect, anyway. Heart enlargement happens only at feeding, it continues to get smaller even through the right-after digesting time. Wich means the heart is probably back to the inicial small size when the python takes another meal.
And we all know that powerfeeding is limited, the snake will not take a meal every day, no matter what.
But interesting...
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