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Ok, so about a month ago I was feeding all of the snakes and normally I do feed them all small rats but this time I fed them adult mice instead........when I checked the snakes the next morning one of my animals had regurgitated it's mouse meal. This female was in the cage with a male at the time, a male that had been trying to breed with her for weeks and she wasn't having any of it, so when I saw that she had regurged I was thinking that she must be really stressed so I separated them. After 2 weeks I fed again. This time I fed small rats again....no mice. She was fine, right as rain. She ate her small rat. Ok the next time I fed out, rats again no worries she ate....shed then pooped. So today I fed out the snakes and this time I used mice again......afew hours go by and I go back into the snake room and she has regurgitated it. Very weird. Now bare in mind this is an animal that was raised on both mice and rats so she has eaten mice in the past. The last 2 times I have fed mice to this snake she regurgitated them but she still seems Ok when she eats rats....the rats are bigger than the adult mice. What's the deal?????? Eddy Brown