This week I lost a wee holland lop that for the first 10 days of it's life seemed to be on track for doing well and starting to get its feet under it and moving around.
On day 11 I said hmm... something is not right with you. It was just not doing well, looking thinner, and just off. I tried supplementing, warmth, and checked it all over really well but saw nothing that indicated a reason for failure.
I found it dead the other day. It's just disappointing and sad when that happens. Makes you wonder what was wrong with it genetically that it failed.