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Neotenic Alpines

This is a discussion on Neotenic Alpines within the Newt and Salamander Help forums, part of the Beginner Newt, Salamander, Axolotl & Help Topics category; So most of my apuanus have morphed about 2/3 weeks ago and the ones that I have held onto are ...

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Old 2nd July 2010   #1 (permalink)
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Default Neotenic Alpines

So most of my apuanus have morphed about 2/3 weeks ago and the ones that I have held onto are doing really well. However two of them are still happily swimming about with their gills in full bloom, showing no signs of morphing. I know this happens sometimes but I was wondering how normal this is and roughly how long they stay like this? Further to this is there anything that can stimulate the morphing process?

Oh and finally....I promise...what about the colouration? Will their adult colours still develop or will they stay a greyish mottled colour?

Thanks



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Old 2nd July 2010   #2 (permalink)
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Default Re: Neotenic Alpines

Just because they havenīt morphed yet it doesnīt mean they wonīt. True neoteny is certainly possible in I.alpestris but itīs not that common. Most apparently neotenic animals end up morphing sooner or later.
Now, if they trully are neotenic, it can last their whole lives. However, metamorphosis can be induced (although i donīt see the point).
The coloration should develop very much the same as any other adult. There might be some minor differences to go with the morphological ones, but otherwise, itīs the very same.



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