1. In the pet auctions, there are a lot of auctions. If you would maybe want a sepia Berrok, you would have to shuffle through all of those pages to find one. With a search bar, you could type in the species of creatu you're looking for, or maybe the color. It would be a lot more faster to find what you're looking for.

2. For the creatu idea, I was thinking some type of hippo-looking creatu. I mean look at this: 

Don't lie, you know it looks kinda cute.

These are just some ideas i'm throwing out there. Don't be afraid to post your opinion.