A Curious & Interesting Idea on Incubation, Color, and Gender...(more & long)

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Posted by * IGUANA JOE * on March 02, 2000 at 19:48:49:

As most of you know, crocodilians and some gecko species
are born male or female depending on the teperature level present in thei incubatin environment.
Warmer temps produce males, lower temps produce females.
Has anyone ever -professionally- experimented in doing so on iguanas. i know that there is so far no proof or confirmation on this subject, but i just felt like sharing this thought.
Another (crazy) idea.
In the beautiful Leopard gecko, a lizard with such record in cpativity to equal the goldfish (hence the so many morphs), people use high or low temps to first "create" the male/female gene, THEN, they "play" around with the temps to increase or decrease melanin or color in the skin, creating leucistic or "jungle" morphs.
NOW, same happens on mammals, such as rabbits and weasels. Winter sheds the coat into white, spring back to brown. I kno i know, "duh ig joe!", but wait!
in an experiment, a small ice pack (or was it warm?) was applied on a certain area of the body of a juvie bunny, whose color was black (or white? either way, just read...).
the application caused the hair to grow the opposite color from the rest of the body (a black bunny got a white spot, OR viceversa). So as we can see, temperatures do affect color of skin (just look at us humans!).

So, (finally the conclusion! :) if extended experimenting was to be done on iguana incubation, do you think that we could have some day color morphs on igs? (we already do know of albinos and fluker's "Diamond Blue).
i'd love to see that happen one day.
thanx for the patience in reading this "War & Peace" on my insane ideas!
o'voir!

Follow Ups:

I know that the curious looks of many dogs... Chovy 03/03/00 (0)
Re: A Curious & Interesting Idea on Incubation, Color, and Gender...(more & long) Ingo 03/03/00 (1)
- Maybe because female embryos die at that temp? just a guess...nm Chovy 03/03/00 (0)
OK Jekell and Hdye,,,,,, cirsisue 03/02/00 (4)
- I have an idea.....?! Bosse 03/03/00 (3)
  - Bosse, what temps were they incubated at? (more) dslizards 03/03/00 (2)
    - Decomposing is the word...long Bosse 03/03/00 (1)
      - nice followup, Bosse, I'll see if I can find my sources dslizards 03/04/00 (0)

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: As most of you know, crocodilians and some gecko species : are born male or female depending on the teperature level present in thei incubatin environment. : Warmer temps produce males, lower temps produce females. : Has anyone ever -professionally- experimented in doing so on iguanas. i know that there is so far no proof or confirmation on this subject, but i just felt like sharing this thought. : Another (crazy) idea. : In the beautiful Leopard gecko, a lizard with such record in cpativity to equal the goldfish (hence the so many morphs), people use high or low temps to first "create" the male/female gene, THEN, they "play" around with the temps to increase or decrease melanin or color in the skin, creating leucistic or "jungle" morphs. : NOW, same happens on mammals, such as rabbits and weasels. Winter sheds the coat into white, spring back to brown. I kno i know, "duh ig joe!", but wait! : in an experiment, a small ice pack (or was it warm?) was applied on a certain area of the body of a juvie bunny, whose color was black (or white? either way, just read...). : the application caused the hair to grow the opposite color from the rest of the body (a black bunny got a white spot, OR viceversa). So as we can see, temperatures do affect color of skin (just look at us humans!). : So, (finally the conclusion! :) if extended experimenting was to be done on iguana incubation, do you think that we could have some day color morphs on igs? (we already do know of albinos and fluker's "Diamond Blue). : i'd love to see that happen one day. : thanx for the patience in reading this "War & Peace" on my insane ideas! : o'voir!

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