Ahh I didn't take elevation into a factor. That makes sense.Nope but I'm going back to my mom's friend house this week. Or maybe in the weekend. The one in the picture weights 1.2 kgs.
Couldn't weight the other one. But I will next time I go there.
Yup probably because where they live is quite cold (14° C) it's a mountain... And they(owners) don't pay attention if its cold or not... maybe that's why they are pyramiding?
Keto was beginning to pyramiding when I got him but i stopped it by raising humidity in his enclosure also by keeping him in warmest place of my apartment.
Also diet might be a factor... cause they only get lettuce.