You might of noticed that certain types of adopts keep appearing with specific eggs. The eggs are not random and give some hint at what kind of adopt you're getting, except the generic ones. Most of the categories are pretty self explanatory, I think everyone already figured out what the bat wing and antler ones meant. Also these categories are pretty broad on purpose, so I can often fit an adopt into more than one egg type.

Also some of these eggs are fairly new. You might have only seen them once already, or not at all. I'm constantly updating the egg when I find there's a type of adopt I make often but don't have a dedicated egg for. I don't know how I'll squeeze new eggs on here in the future, but I'll figure something out.