[shybird]

I am sorry about the loss of your Chi.

I am guessing that either a fight occurred or a game of chase got out of hand. I do believe that the prey instinct took over and that caused her to eat the chi. Just as it would if it were a squirrel or a rabbit and there was no one there to stop it. I think it is more normal of a behavior than we would like to believe/admit our pets are capable of. We tend to believe they no longer have those traits that their ancestors had because we feed them and they don't need those skills any longer. My human emotions would make it hard for me to look lovingly at one of my dogs if they killed and ate the other one. But, I do not think the dog should be euthanized because of it. It may have to be re-homed (with no small animals) as the owner may not be able to forgive the act.