Yeah, they grow like crazy! It's weird when I look from one terrarium to the other, because comparitively it makes baby-pac look even smaller and Grif look gigantic compared to each other. But our new guy/girl really isn't that much smaller than Grif was when we got him, and I know it won't be little for long! ;-) I still hope it keeps that green color though... still not sure on gender. From what I gather, it's pretty hard to tell until they are full grown. Leaning towards female though (It might be wishful thinking). It hasn't made a single noise since we got it, whereas Grif cheeped the whole way home when we got him. He has always been pretty vocal. We will just have to make a guess towards gender and name it and wait and see if we guessed right! Or pick a gender-neutral name.