Reptile & Amphibian Forums

I thought I read somewhere that incubating temps determine collared gender like in alligators and some other reptiles. True?

thanks-Lance

I've definitely read that somewhere too but not sure if lower/higher equals more males/females. I've also read that fluctuations in temps produce a good mix. I'm pretty sure it was Will Wells' page that said this.

Yeah, mlaes on the higher end of temps, and female lower. I usually keep mine avg in the middle 80's and seem to get more males.
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In most animals I thought gender was determined by the male, X and Y chromosomes etc, it just occured to me this might not be always the case for all animals. Dont know about you guys but I think that's really strange !

Speaking of strange, check out the asexual lifestyle of certain whiptail lizards (genus Cnemidophorus). Seems only females are produced which are born gravid, basically. Must haved saved room on Noah's Ark!

"An interesting aspect to reproduction in these asexual whiptail lizards is that mating behaviors are still seen even though the populations are entirely female."

LIZARDS GONE WILD! lol

Lance

link: http://en.wikipedia.org/wiki/Parthenogenesis

(not my photo)

I've heard of that, aren't those the plateau striped whiptails. There is a small population in Oregon, and there from the four corners area.

Morgan

or/ virgin birth and all offspring are identical clones to the mother

NEAT
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