Granted, robots are still far away from completely and realistically displaying the range of emotions that animals and humans can, but this gives some idea of how they can be capable of emoting. Going forward, we'll see more robots developed that focus on interacting with one another and humans, forming connections much like we have with pets.
http://www.youtube.com/watch?v=ilmDN2e_Flc&feature=related
What I meant in my previous post is that we humans sense emotions by visual, aural, and tactile cues. We don't literally feel what others feel, though we can empathize with them. Often times we project our emotions and think we feel what animals (or humans) feel, but we don't really. If you define emotions simply in the chemical or impulse sense, then robots could "feel" in much the same way as humans or animals do. But what neither robots nor animals can do is reason like humans (in the philosophical sense) or imagine (to constantly construct worlds and ideas shaped from science and discoveries). Is it
possible that animals can reason or imagine like we do? Sure, but there's no way to prove that without seeing some result. You don't see animals writing books, constructing art for the sake of pleasure, or building machines. In some sense they do have the capability to adapt and some can even use tools (primates, for example) but there seems to be a limit and they are not comparable to us in this regard.
I'm not trying to diminish the importance of animals and the roles they play in our personal lives as well as the world as a whole, I'm just saying that we shouldn't anthropomorphize them and think that they are exactly the same as us. Animal cruelty is wrong, and it dehumanizes us as much as it hurts the animals. I think we are made to care for animals and to look after them, and it's good that people do care.
Also, I realize this post has little to do with the OP, lol.