Why does your cat stare at you with her mouth open?
2 Answers
Cats may stare at their owners with their mouths open for a variety of reasons. It could be a sign of affection, or it could indicate that the cat is feeling stressed or uncomfortable. It could also be a sign that the cat is feeling hungry or thirsty, or is trying to communicate something to you. If you are concerned, it is best to consult with your veterinarian to determine the cause of the behavior.
Although it may appear that your cat is staring in open-mouthed disbelief, there's actually a reason he pulls this funny face: Your cat is analyzing a new or strange smell—but instead of doing so through the nostrils, he is “scent-sucking” through the roof of his mouth. This is called the flehmen response.