Reptile & Amphibian Forums

There is some misinformation regarding these characteristics on some internet sites. Males eventually grow larger heads with bigger jowls than females, but of my group, a female has the tallest horns on her head, and largest crest of spikes down her back. It is a genetic trait. She is a bit skinny in the picture it was taken just after laying eggs last summer. I have had older bigger males with smaller crests and spikes.

that males dont have bigger heads, crest, horns.

http:///www.rosh."com".au/vaah/rhino.htm

For instance the above address (which I am currently unable to view) claims that female rhino iguanas lack the horns that give the lizard it's name.

The picture below shows an unrelated pair at age 7. The male in the foreground has smaller crest spines on his back, and smaller horns on his head, yet a slightly bigger body all around. Males grow bigger, but because of the diverse morphology of this specie, that does not always equate to bigger horns and taller crests of one sex over the other.

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So is this always the ocasion or is it possible your female is just a little differant then most? I have read the same thing about the adults male traits with larger crests, and horns in alot of differant areas on the internet. So is it a absolute fact on what your saying, about females actually having larger horns and crests then males do? Im not doubting your word but trying to get the story straight. My thought so far is that lizzards grow indevidually differantly just like humans do. I have seen human females with a larger bone structure and broader shoulders then me ect. and im wondering if this could be the same in this case with your female. Or if others maybe could confirm this statement that females usally have larger horns, spikes, and crests then males do cause at the moment it seems a poll would be in order to help me understand the truths in this.

Good topic glad you brought this up