current event: Do animals smile?

i was looking around on yahoo lookng for a current event to do when i saw this article. i at first thought, well duh! of course they can. though i hadent thought it to be quit like this. i thought it was just something about how they its not really them smiling its just them having gas or something like that. but no. they were actually talking about how they actually are smiling. i mostley think that scientists are so indecisive. any ways, i was reading about how they have all the emotions we humans have and im telling my acer, 'of course they do!why do you think we have an animal abuse thing? if they had no emoitions, then they wouldnt care what happened to them!'
as im telling it this my stepdad comes in and looks at me strangley. of course this just proves how crazy i really am.
anyways,back on the topic. so they talked about how animals have the same feelings as humans, like for example, happiness, sadness, fear, anger, love, and even jealousey. it is strange that they are finally seeing this..... i guess they just thought there had to be a scientific answer to it. but all it really is is them showing their feelings. so yes they smile and yes they actually have the same feelings as humans.
 heres where i found it:
http://green.yahoo.com/blog/greenpicks/316/do-animals-smile.html