Rabbits are unusual animals in that they will raise another rabbits kits. Most animals do not take in others offspring. Here is quite the example. One of my dogs brought a wild cottontail kit to the house several weeks ago. It's eyes were barely open. One of my silver fox had a recent litter and I put the wild kit in her nest box. Today, I will be setting the cottontail kit free.

Cool story
thanks for sharing

One of my cats brought in a cottontail kit a few days ago, alive of course, more fun to torment that way. I took it away + put it back outside but I have feelings that it will die just the same. I have seen this many times in the past. They have a real Prey "mentality" for lack of a better word. It doesn't take much for them to just die.

Randy, that they do. I figured this one would die when I caught it up to release it. I was surprised it didn't. They do not tame down in captivity at all.

No they don't + nature takes its toll + we are but observers who sometimes intervene.That being said, there is NO reason to not at least try.