Do Animals Have really Got Emotional Lives

It has been able to demonstrate these days that humans and animals have the some structure and neurological function, they have qualitative differences but animals are able to feel emotions. Emotions are composed of four aspects:
-subjective cognitive processes -leading to feelings,
-biological-evolutionary functions,
-psysicological-autonomous nervous system,
-hormones,social-conduct aspect.
Basic emotions of animals
Suffering: animals may have a more intense suffering than humans, because they haven't got the ability to anticipate the situation that causes pain, the fear of a new and unknown event will increase their anxiety and suffering further.
Fear: when to attack, the alternative to escape for the animal is impossible to have. There is no choice to face fear.
Anxiety: when it is unnecessary it can hurt the animal, only to have to it here as a warning.
Frustations: when animals are faced to a conflict that can not elude, this many damege inducing the presentation of conduct problems as mutilation or estenotipias.