That poor baby. Thank you very much for sharing the photo. Always something to be learned, as sad as this lesson was. Kudos to you for having the strength to do right by the little guy. And congrats on the rest of the clutch! They are some very good looking babies.
I'm not all that surprised that the heart was still beating a few hours later though. From my understanding, the nerve impulses are still there in snakes for hours, which would explain the continued systemic function you saw I suppose. Very interesting though. I don't guess you took pictures of the autopsy? (I know that's an odd question, but being pre-vet I find myself highly intrigued.) If you did, I would love a PM if you feel like sharing.