Do Animals Have Feelings?(revision)

Reference:
Talan and Jamie,(2006). Do animals have feelings? Scientific American Mind; Vol. 17 Issue 1, p24-29, 6p, 5 color.

Animal lovers insist their fellow creatures experience joy, sympathy, fear and grief, but scientifically, it is hard to say DO ANIMALS HAVE FEELINGS? － by Klaus Wilhelm
The author came up with some examples like elephants, dogs, even laboratory rats show emotions. Recently, scienticists begin to believe that mammals, at least, have some form of emotions, and doing research about this topic is popular now.

I totally believe that animals have feel. Take dogs which are commonly seemed in our life for example. I did not have any pet before. It was not until we kept a dog as pet that I realize the fact that it did have emotions from the way we get along with.