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| | #1 (permalink) | |
| Fuzzy Sticks ![]() | Virginia shark's pup a 'virgin birth' ![]() A blacktip shark, Carcharhinus limbatus, is shown in this March 2008 file photo in the Indian Ocean off Aliwal Shoal, South Africa. Scientists have confirmed the second case of a 'virgin birth' in a shark. In a report in The Journal of Fish Biology, scientists said DNA testing proved that a pup carried by a female Atlantic blacktip shark in the Virginia Aquarium & Marine Science Center contained no genetic material from a male. For the complete article: Scientists: Virginia shark's pup a 'virgin birth' - Yahoo! News Thanks BigAl for the heads up! ![]()
__________________ Quote:
If we ignore the environment maybe it will just go away.... DIY Beckett Skimmer New Horizons | |
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| | #2 (permalink) |
| recovering overfeeder ![]() | Re: Virginia shark's pup a 'virgin birth' Wow that is wild.. Nature taking care of nature. amazing
__________________ Brenda ![]() Those who dance are considered insane by those who cannot hear the music ~ George Carlin Original member of http://www.reefsanctuary.com/forums/...eef-holic.htmlMy addiction 75 gal glass http://www.reefsanctuary.com/forums/...ce-sanity.html |
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| | #3 (permalink) |
| Tiger Shark | Re: Virginia shark's pup a 'virgin birth' Nature has it was of keeping the shark population alive so the ocean can survive
__________________ A Wiseman once said build a stage add a pole & they will dance - Jack 2007 ![]() www.aquaticaggression.com |
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| | #4 (permalink) |
| Do I look as lost as I am ![]() | Re: Virginia shark's pup a 'virgin birth' That's Mother Nature trying to help one species (Carcharhinus limbatus) over-come some of the problems another species (Homo sapiens ) have caused. GO Mother Nature ![]()
__________________ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~ Live Rock Rubble will do the SAME thing as Bio-Balls and is NOT a suitable replacement for BIO-BALLS in a Reef System! It's ALL gotta go!! Nitrate (NO3) reduction is directly proportional to percentage of Water Change. Allen's home-made formula...currentNO3-((%WC*.01)currentNO3)=finalNO3 (thanks Luukosian) This means if you change 50% of your total water volume (That's EVERYTHING) you'll get a net reduction of (NO3) somewhere around 50%. Ask me about how to increase your REEF budget without going without FOOD!! Big Al's 10g Julie's (BigAl's Gal) 6g NanoCube Gone but not forgotten ![]() BigAl's Slow 90g Tank Chronicle Allens OFFICE 12g Nano-Reef |
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| Elegance coral | Re: Virginia shark's pup a 'virgin birth' We just learned about that in vertebrate zoology. Unfortunately that's a last ditch effort to spread their genes. I thought the new pup would be sterile, no?
__________________ -Sara SW since Jan. '08 150 gallon SPS reef 20 gallon BTA/clown tank 90 gallon bowfront mixed reef 45 gallon cube 150 tank thread 45 cube thread My Reefnook |
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| Golden Moray | Re: Virginia shark's pup a 'virgin birth' hmm I just got a glimpse of an article on it. Saying its the second time known that a shark has had a-sexual reproduction I think the other was a hammerhead.
__________________ Reefing off and on since '92 BigJay's Oceanic 90g bowfront chronicle See my pyrex products and target feeders here |
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| | #9 (permalink) |
| Elegance coral | Re: Virginia shark's pup a 'virgin birth' Yeah they've recorded parthenogenesis with a hammerhead too. There's a report about it in Biology Letters: Chapman et al. 2007. Virgin Birth in a Hammerhead Shark. Biology Letters. 3: 425-427.
__________________ -Sara SW since Jan. '08 150 gallon SPS reef 20 gallon BTA/clown tank 90 gallon bowfront mixed reef 45 gallon cube 150 tank thread 45 cube thread My Reefnook |
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