Opinions Please

[Eridu Serpent]

The last picture shows a 100% male. I remembered your thread, and have actually taken into consideration your theory when it comes to sexing. It would be nice if it was proven to be true, but we've already seen inconsistencies (Grif's African Bullfrog for example). I believe this is just a physical trait, and does not hold true when it comes to 100% identifying sex. A perfect example would be coloration, it was previously assumed a male African Bullfrog would have yellow/orange colors under its armpits and throat, thus proving 100% it's a male. We have all learned this is not true.

Another aspect to consider would be how the frog is 'posing' in the picture. In a picture it can be protruding its tail bone thus making it look like a "skinny/thin bottomed animal." If it shifts or sits another way in a picture this can suck in its tailbone appearing like a "round bottomed animal." So unless you are observing said frog in person it's almost impossible to correctly sex by this theory.

Personally I have found it better to sex them with this method when very young, as most come from the breeders slightly under weight it also better to wait after a week of feeding a good food to them.
As they get older the theory depends on how well they are fed as very underweight ones also get the spine bone showing more.
But I have found it to be a good way, I have been doing some tests with the importer who I got mine from.

[SCF]

Personally I have found it better to sex them with this method when very young, as most come from the breeders slightly under weight it also better to wait after a week of feeding a good food to them.
As they get older the theory depends on how well they are fed as very underweight ones also get the spine bone showing more.
But I have found it to be a good way, I have been doing some tests with the importer who I got mine from.

I'm not doubting you at all. It would just take more than a few frogs to sex at a young age accurately to prove your theory. There's always a 50% chance you will be right, so it would take numbers.

[GrifTheGreat]

I'm not doubting you at all. It would just take more than a few frogs to sex at a young age accurately to prove your theory. There's always a 50% chance you will be right, so it would take numbers.

This is correct. You would need several hundred or even thousands in order to prove that the tail bone theory is a solid method for sexing them, but if it were a viable method I'm sure that those who study these frogs on a day to day basis would have already know n and hence forth published the information. I have never seen any articles or studies that mention the tail bone as a method for sexing.

I still don't see it as a viable method at this point.