First, I'm very, very sorry. Secondly, are you questioning what to do with the remains? I don't have a chinchilla, but I don't think the question is species-specific, unless there's somthing you have to worry about because they are "exotics". When we had to have our kitty put to sleep we elected to have her cremated. It was a very traumatic event anyway (young cat, horrible illness) and the thought of having her remains somewhere unknown was very, very disturbing to me. So, we bought an urn engraved with a willow tree (her name was Willow) and we will be able to have her with us. To be sure, there are plenty of people that find cremation creepy, but to us it was comforting. I can't answer your question with any reliabilty as to what a regular animal hospital may be willing to take. Our regular veterianarian will dispose of remains, but again, for us...that thought was way too disturbing. I also grew up in the country, so all my childhood pets are buried in the backyard. Again, I'm sorry.