They are still very young…. is there a reason why they are already away from their mother?
I recommend having them checked out by a vet since they are such babies, and the vet can make sure they don’t have any issues underneath those mats.
Well, since they have some mats, I think you might need to go the tough love approach at first. I would put her on a towel on your lap or on a table, place bun on the towel, and gently try to comb out the mats if you can. Sometimes they come out easier than you think. Just be very careful not to put her skin, as bunny skin is very delicate and can tear easily. It is also risky (esp on a small bun) to cut the mats, but if they are very bad you can trim with clippers.
Once you have them cleaned up this way, you can work on desensitizing them to the comb by just doing a little bit here and there, while they are eating. With one of my very skittish buns I would feed a few pellets at a time while combing him, so he only got his pellets while I was combing.
But I think at first you’ll need to just scoop them up and get them cleaned up. Once they bond with you they will also be more tolerant of it, but that will also come later.
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.