Very final Sadness piece in lvl 1! Cats who are anxious, angry, or upset may make sounds that are similar to a human whine or whimper. These noises are indications of a cat's emotions—and so, in that sense, the animal is crying. _______ Here are some physical signs your dog might be sad: Vocalizations like whines or whimpers. Mopey behavior around things they typically enjoy. Lowered energy. Refusing food or treats. Eyes appear squinty or smaller than usual. A change in sleep patterns or behavior.