Caterpillars Day 4

This morning, I watched them for ten minutes and didn't see any movement.  I was seriously worried they were dead, but when I looked at the cup a little while later, one of them definitely moved.  So, at least one of our caterpillars is still alive.  Hopefully, the other four are just being very still while they digest their brown caterpillar food.  We'll see...

Update: It is now almost 4 p.m. and I'm back to thinking they are all dead.  I traced each caterpillar with a dry-erase marker; this way I can know for sure whether or not any of them move.