BPA, I didn't post yesterday because I didn't want to make you feel worse, but small rodents are susceptible to heat and fumes both. If you have to move the babies again, you absolutely must transport them in the passenger area of the vehicle with you if you want them to live. Also, don't give them salted peanuts. That is something I learned the hard way and it sucks for the animal when we don't know things like that. I still feel sick when I think about making that mistake.