|
Forums36
Topics42,113
Posts571,682
Members19,115
| |
Most Online45,564 2 hours ago
|
|
|
0 members (),
31,223
guests, and
120
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
Joined: Oct 2006
Posts: 325
Lunker
|
|
Lunker
Joined: Oct 2006
Posts: 325 |
Interesting take on an odd fish. Read the whole article: Time Magazine Article "Once scientists began studying the impact of global warming on everything from tourism to asthma, it was only a matter of time before they got around to sex. Now two biologists at Spain's Higher Council for Scientific Research (CSIC) have done just that, at least when it comes to fish. You may have missed it in biology class, but in some finned species, like the Atlantic silverside � as well as in many reptiles � sex is determined not by genetics but by temperature: the undifferentiated embryo develops testes or ovaries on the basis of whichever option conveys evolutionary advantages for that particular environment. Now, in a study published in the July 30 edition of the scientific journal Public Library of Science, Natalia Ospina-Alvarez and Francesc Piferrer have gone a little further in explaining how that mechanism works. In laboratory tests, they have demonstrated that higher water temperatures result in more male fish." Read the whole article: Time Magazine Article
Last edited by AaronM; 07/31/08 08:39 PM.
|
|
|
|
|
Joined: Jul 2006
Posts: 7,615 Likes: 7
Ambassador Field Correspondent Lunker
|
|
Ambassador Field Correspondent Lunker
Joined: Jul 2006
Posts: 7,615 Likes: 7 |
Aaron, when I click on the link above I get an error message.
I use to raise tortoises and with them temperature is a determining factor in the sex of the offspring.
JHAP ~~~~~~~~~~ "My mind is a raging torrent, flooded with rivulets of thought cascading into a waterfall of creative alternatives." ...Hedley Lamarr (that's Hedley not Hedy)
|
|
|
|
|
Joined: Jul 2005
Posts: 4,598 Likes: 37
Lunker
|
|
Lunker
Joined: Jul 2005
Posts: 4,598 Likes: 37 |
Aligators too, sex is determined by temperature as well which in turn is dependent on the depth that the eggs are buried.
|
|
|
Moderated by Bill Cody, Bruce Condello, catmandoo, Chris Steelman, Dave Davidson1, esshup, ewest, FireIsHot, Omaha, Sunil, teehjaeh57
|
|