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Virginia Aquarium Shark was 2nd proven instance of asexual reproduction.

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Duppers Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 10:35 AM
Original message
Virginia Aquarium Shark was 2nd proven instance of asexual reproduction.
Marine miracle: Local shark got pregnant by herself
A study confirms local shark was second proven instance of asexual reproduction.


By MIKE HOLTZCLAW
October 10, 2008

A shark that died more than a year ago at the Virginia Aquarium & Marine Science Center in Virginia Beach is creating big news in marine biology. An article today in a science journal has identified her as the second documented instance of asexual reproduction in sharks.

The study, reported in the October edition of the Journal of Fish Biology, refers to it as "a virgin birth." But that's a misnomer because the shark's baby was never born, having died in utero along with its mother in June 2007.

That's a minor distinction to the scientific community compared with the news that the shark, Tidbit, appears to have been carrying a baby that contained no genetic material from a father.

Tidbit, an Atlantic blacktip shark, was born in the wild but lived most of her life in the aquarium's " Norfolk Canyon" exhibit. She died unexpectedly at 8, when biologists say she was just reaching sexual maturity. There were no male blacktip sharks at the aquarium during her life.

http://www.dailypress.com/news/local/newsletter/dp-local_shark_1010oct10,0,3349513.story



Science has a long way to go in understanding everything.
(And no, hell no, I'm not anti-science; I'm a science-respecting atheist.)
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Richard D Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 10:37 AM
Response to Original message
1. Damn . . .
. . . the return of the Messiah has been postponed.
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Duppers Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 10:52 AM
Response to Reply #1
3. postponed?
ya mean canceled. ;)
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FLyellowdog Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 11:10 AM
Response to Reply #1
5. Can't talk now...
gotta rush out to get my new baby shark for the manger display.
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VWolf Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 10:52 AM
Response to Original message
2. The first case resulted in
the Bush twins.
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TZ Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 11:09 AM
Response to Original message
4. We know very little about shark behavior in the wild
Especially reproductive behavior/biology..Who knows maybe this happens from time to time when the sex balances are unequal..Hell we know that parrotfish CHANGE sexes in these types of situations..so why NOT asexual reproduction...
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Duppers Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 11:18 AM
Response to Reply #4
6. no, no, it's a "miracle" !
:sarcasm:

(of course, I agree w/you)
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TZ Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 12:54 PM
Response to Reply #6
9. Yeah that headline irritated the hell out of me.
Newspapers always have to do that with science stories:banghead:
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Orrex Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 12:03 PM
Response to Reply #4
8. Why do you hate men so much?
:evilgrin:
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YankeyMCC Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Oct-10-08 11:50 AM
Response to Original message
7. Dang!
Are we males going to become completely irrelevant? ;)

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