Quote Originally Posted by Actuary View Post
Suddenly, this "boy" has shot up quickly in weight and now I'm wondering if he might be a she. Three months ago he was 561 grams and now he is 818 grams. That seems like a lot of growth for a male over a 3 month period.

Given he was mislabeled, I wonder if he is actually a she. Any thoughts on whether that growth is normal for a male? I wish I knew how to "pop" him and check but I don't want to take any chances of hurting him.
A 256g weight gain in 3 months is pretty normal. Most shoot for 100g a month weight gain when they're young. Growth rate doesn't determine sex, all these animals grow differently. I have a male and a female from last year who are nearly identical in weight and eating habits so it all depends.