I have learned (the hard way) to not interfer with the babies hatching. I have on past experiences "helped" and lost babies. So yesterday a call baby and pipped and zipped on its own. I noticed a pip in the morning, left it alone all day. By 10 last night, it had zipped 95% around. At 2am was out of the shell but still attached so I left it alone. At 6am it was out of the shell but dead in the bator. What gives? If I help, they die so this one I left it totally alone, it died. It was perfectly formed, yolk totally absorbed. I don't get it. Just wondered if you had experienced this. It was in the Brinsea Mini. ?????? There are still 6 eggs in there.