1. It may be that the kitten groaned before it died and did not have time to close its mouth. 2. It may be that the kitten was sick internally and had symptoms of vomiting before it died. It may have no strength before it died. shut up. 3. When a kitten is about to die, its breathing will gradually become lighter, its body temperature will also drop, and sometimes it will open its mouth to breathe. Parents should rescue kittens promptly when they discover these situations.

Tips:

There are many reasons why kittens die, such as illness, freezing, hunger, etc. These are all normal phenomena.