Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

The Mystery of Lizard Breath: One-Way Air Flow May Be 270 Million Years Old
Science Daily ^ | 12-11-2913

Posted on 12/12/2013 2:07:17 PM PST by Renfield

Air flows mostly in a one-way loop through the lungs of monitor lizards -- a breathing method shared by birds, alligators and presumably dinosaurs, according to a new University of Utah study.

The findings -- published online Dec. 11 in the journal Nature -- raise the possibility this breathing pattern originated 270 million years ago, about 20 million years earlier than previously believed and 100 million years before the first birds. Why remains a mystery.

"It appears to be much more common and ancient than anyone thought," says C.G. Farmer, the study's senior author and an associate professor of biology at the University of Utah. "It has been thought to be important for enabling birds to support strenuous activity, such as flight. We now know it's not unique to birds. It shows our previous notions about the function of these one-way patterns of airflow are inadequate. They are found in animals besides those with fast metabolisms."..

(Excerpt) Read more at sciencedaily.com ...


TOPICS: History; Science
KEYWORDS: dinosaurs; godsgravesglyphs; paleontology

1 posted on 12/12/2013 2:07:17 PM PST by Renfield
[ Post Reply | Private Reply | View Replies]

To: SunkenCiv

Ping


2 posted on 12/12/2013 2:07:30 PM PST by Renfield (Turning apples into venison since 1999!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Renfield

Fish do one-way respiration, so it’s not surprising that reptiles do it too, being as close they are to fish evolutionary-wise, scales and all.


3 posted on 12/12/2013 2:16:07 PM PST by James C. Bennett (An Australian.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Renfield

“Why remains a mystery.”

The answer is found in rocks from that long ago time - about ancient atmosphere. There was a global oxygen collapse.

It did not happen quickly but over time. The formation and breakup of Gondwanaland was central to this event.

The animals you’ve referred to all have the ability to store air in their bodies. Those reptiles that did not went extinct.

The best read on this event is: Out Of Thin Air, by Peter D. Ward.


4 posted on 12/12/2013 2:22:02 PM PST by SatinDoll (A NATURAL BORN CITIZEN IS BORN IN THE USA OF USA CITIZEN PARENTS)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Renfield

And in other news we could be breathing air that’s millions of years old. >hak< >coff< >coff<


5 posted on 12/12/2013 2:23:16 PM PST by SkyDancer (Live your life in such a way that the Westboro church will want to picket your funeral.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Renfield

I always accused my wife of wearing an oxygen tank on her back that would automatically pump oxygen into her lungs so that she did not have to stop talking in order that she could breathe! ;-)

Now I know how she does it! ( It is lucky that she does not read FR! )


6 posted on 12/12/2013 2:28:37 PM PST by spel_grammer_an_punct_polise (What we need is to sucker the fedthugs into a "Tiananmen Square"-like incident on the National Mall!)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Renfield

I assumed lizard breath came from improper oral hygiene.


7 posted on 12/12/2013 2:30:03 PM PST by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SkyDancer
And in other news we could be breathing air that’s millions of years old. >hak< >coff< >coff<

Including air that dinosaurs once farted out.

But seriously, the atoms in our bodies are billions of years old. The simplest of which, hydrogen, could not be produced in stars and so predates them, going back to nearly the beginning of time.

8 posted on 12/12/2013 2:35:05 PM PST by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 5 | View Replies]

To: ETL

Probably why they can’t use people to hold up cue cards for Dear Leader.


9 posted on 12/12/2013 2:36:52 PM PST by meatloaf
[ Post Reply | Private Reply | To 7 | View Replies]

To: ETL

Don’t tell me I’m that old .....LOL


10 posted on 12/12/2013 2:44:13 PM PST by SkyDancer (Live your life in such a way that the Westboro church will want to picket your funeral.)
[ Post Reply | Private Reply | To 8 | View Replies]

To: SkyDancer

Think of the bright side, the atoms that make up your body will continue to exist billions of years into the future.


11 posted on 12/12/2013 2:53:57 PM PST by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 10 | View Replies]

To: ETL

But who will know? *sob*


12 posted on 12/12/2013 2:55:31 PM PST by SkyDancer (Live your life in such a way that the Westboro church will want to picket your funeral.)
[ Post Reply | Private Reply | To 11 | View Replies]

To: ETL

Sorta like a cosmic Timothy Tredwell.


13 posted on 12/12/2013 2:58:43 PM PST by Tijeras_Slim
[ Post Reply | Private Reply | To 11 | View Replies]

To: SkyDancer

Perhaps the universe will collapse in a “big crunch” in the far distant future and your atoms will reassemble.


14 posted on 12/12/2013 3:00:27 PM PST by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 12 | View Replies]

To: meatloaf

Lol. Who would want to get that close to him anyway? They couldn’t pay me enough.


15 posted on 12/12/2013 3:06:08 PM PST by ETL (ALL (most?) of the Obama-commie connections at my FR Home page: http://www.freerepublic.com/~etl/)
[ Post Reply | Private Reply | To 9 | View Replies]

To: SkyDancer

Morning “Lizard Breath” will soon show up in mouthwash commercials.


16 posted on 12/12/2013 3:27:07 PM PST by Veto! (Opinions freely dispensed as advice)
[ Post Reply | Private Reply | To 5 | View Replies]

To: Renfield
Oh, wrong thread...or not?


17 posted on 12/12/2013 4:23:37 PM PST by Caipirabob (Communists... Socialists... Democrats...Traitors... Who can tell the difference?)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Renfield; StayAt HomeMother; Ernest_at_the_Beach; decimon; 1010RD; 21twelve; 24Karet; ...

Thanks Renfield.

18 posted on 12/12/2013 8:29:41 PM PST by SunkenCiv (http://www.freerepublic.com/~mestamachine/)
[ Post Reply | Private Reply | View Replies]

To: SkyDancer

The stars will know. :)


19 posted on 12/14/2013 6:12:32 PM PST by Redcitizen (Never bring a tank to a Chuck Norris fight.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: Renfield

20 posted on 12/14/2013 6:16:29 PM PST by Redcitizen (Never bring a tank to a Chuck Norris fight.)
[ Post Reply | Private Reply | To 1 | View Replies]

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
General/Chat
Topics · Post Article

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