ceelove

Sounds like an interesting book. I just have a brief note about phthalates. They do cause liver cancer in animals when injected in high doses. They are also trying to see if there are any measureable effects in infants in intensive care. This is because surgical tubing often includes phthalates, and infants who have their entire blood supply replaced through transfusion or otherwise filtered in a way that requires large amounts to flow through this tubing might possibly see adverse health effects. They've been looking for a while and haven't proved it yet though.

I'm not saying you shouldn't look into other materials, but I wouldn't worry too much about Sylvana gnawing on the plastic.