Welcome to Eldemore, lovablealex!
The pets that you've adopted will all grow over the course of a month. If you're interested in trading for past releases, you can check out the Codex and build a wishlist!
If you have any questions, please don't hesitate to contact a member of our staff, such as myself, any time! One of our General Helpers should be by shortly to offer some helpful links to take a look through.