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Author Topic: Sharks and Virgin Births
audra trower williams
rabble-rouser
Babbler # 2

posted 21 September 2002 11:16 AM      Profile for audra trower williams   Author's Homepage     Send New Private Message      Edit/Delete Post  Reply With Quote 
quote:
A female whitespotted bamboo shark has given birth to three baby sharks without having been near a male shark in six years.

Yep.


From: And I'm a look you in the eye for every bar of the chorus | Registered: Apr 2001  |  IP: Logged
DrConway
rabble-rouser
Babbler # 490

posted 21 September 2002 01:16 PM      Profile for DrConway     Send New Private Message      Edit/Delete Post  Reply With Quote 
Cloning? Or just really long gestational periods? Or just really hardy sperm?
From: You shall not side with the great against the powerless. | Registered: May 2001  |  IP: Logged
minimal
rabble-rouser
Babbler # 2222

posted 21 September 2002 02:29 PM      Profile for minimal     Send New Private Message      Edit/Delete Post  Reply With Quote 
I keep telling my wife we don't need all that sex every day. Scientists need to pursue this. Maybe we can borrow some of those genes and implant them in the females of our species. It'll leave a lot more time for reading, babbling, etc.
From: Alberta | Registered: Feb 2002  |  IP: Logged
dale cooper
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Babbler # 2946

posted 25 September 2002 01:27 AM      Profile for dale cooper     Send New Private Message      Edit/Delete Post  Reply With Quote 
Does this mean the Messiah is coming back as a shark? How is this going to affect me? Should I start taking swimming lessons?
From: Another place | Registered: Aug 2002  |  IP: Logged
Flowers By Irene
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Babbler # 3012

posted 25 September 2002 02:16 AM      Profile for Flowers By Irene     Send New Private Message      Edit/Delete Post  Reply With Quote 
I saw on Discovery channel one time that frogs can change sex if there is an abundance of one sex, and not enough of the other around during mating season. Think maybe a similar phenomenon is occurring here?
From: "To ignore the facts, does not change the facts." -- Andy Rooney | Registered: Aug 2002  |  IP: Logged
Sisyphus
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Babbler # 1425

posted 25 September 2002 01:58 PM      Profile for Sisyphus     Send New Private Message      Edit/Delete Post  Reply With Quote 
Parthenogenesis is the ability of unfertilized eggs to develop into embryos in the absence of sperm. It is found in frogs and lizards. It can be induced in the former by mechanical stimulation of the egg. It would not be surprising if this characteristic were present in sharks, which are more "primitive" than reptiles or amphibians. Here is a do-it-yourself parthenogenesis project .
From: Never Never Land | Registered: Sep 2001  |  IP: Logged

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