What is consciousness?

Consciousness is our awareness of ourselves & our environment. It is a mysterious thing in psychology that differs man from other animals. It refers the awareness of our mental process such as our thoughts, emotions, feelings, sensations etc. We are the only being on the planet who have this kind of ability of self-awareness or introspect. Suppose, if you are angry, you can try to understand why you are angry, what's the feeling when you are angry or you then try to control your anger. But think, can your pet cat or pet dog do this??