I need them and all of their wacky, fluffy, creepy, adorable glory. Do these come from special events? Or do I have to scavenge for one?

Experiment pets come from the Zapper located in Darkside. You can also use , which can be purchased from user shops and sometimes found in the Bath House. It can take a while to get specific experiments but it is a fun pursuit.

tysm <3

Are you trying for specific experiments or do you want to collect all of them?

I'm mainly trying for the red panda looking one :P

The zapper is def the best option, but sometimes you can also try to find one in the adoption center! I found Rhea there