Well,
I fully understand that the pics suck. I didn't own a digital camera when these guys (the 1st generation) were young. Also, I have gotten a new computer since and I can't find a lot of my pics from that time period.

However, I don't understand why you need a full dorsal shot of these animals if your technique involves looking at the animal's head:

"But I am breeding grandis since 1984 and in most cases my sexing by looking at the head proportions of semiadults turned out to be correct."

The last pic in the lineup of 3 ought to be sufficient...

Also, the one animal that you did guess on, #4 is actually a female, not a male.

Perhaps you could post some pics of your animals and show us what you're talking about.

Anyhow, Thanks for being a good sport!

Take care,

Joe Farah
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- Joe Farah