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samo
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#1 Post by samo »

It seems female sharks can give birth without mating with a partner. Scientists in Northern Ireland have been part of a project to find out how a baby shark turned up in an aquarium in Florida, when no males had been in the tank. Ray Kennedy reports.

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#2 Post by teacher »

More details here on the BBC website: [url]http://news.bbc.co.uk/2/hi/science/nature/6681793.stm[/url]
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#3 Post by donal »

guppies can do that too well kinda one maiting can produce several generations with one mating that or he is the evil one
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#4 Post by col »

very interesting, thanks for posting it
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#5 Post by round_ourway »

made good reading. interesting stuff. its like Jurassic Park all over again :D
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#6 Post by Dave Jolly »

Some species of shark can store unused sperm for very long periods of time when conditions are not suitable for gestation, and can get pregnant when conditions are perfect.
Some species of fish are also known to do this.
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#7 Post by teacher »

Dave Jolly wrote:Some species of shark can store unused sperm for very long periods of time when conditions are not suitable for gestation, and can get pregnant when conditions are perfect.
Some species of fish are also known to do this.
Dave


This doesn't seem to be the case here. Genetic tests showed there was no paternal DNA.
[size=75][i]"Pier fishing was, indeed, an eccentric, unproductive and extremely dull occupation, and even if we'd posessed the necessary heavy plant we decided not to attempt it."[/i] Chris Yates, Out of the Blue.[/size]
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