I certainly have always noticed that they did. And I have a very unbiased view of the situation. Animals have all the human emotions. Love, hate, jealousy, greed--possibly even humor (as I posited on another message board). Intellectually, they are pretty stupid though. But what are you going to do? "The question is not, Can they reason?, nor Can they talk? but, Can they suffer? Why should the law refuse its protection to any sensitive being?" Jeremy Bentham (1748-1832) Thoughts?
You are far more intelligent than you sometimes lead us to believe. You are correct on 2 counts........Humans are part of the animal kingdom.........Humans have the added advantages of better verbal communication and surroundings.
I guess I can tell you all now, I was originally trying to post a picture of my two kitties, male and female (and both fixed, interestingly), in a romantic embrace. But I couldn't get the picture to load. Anyone else want to give it a try? Here: PictureTrail: Online Photo Sharing, Social Network, Image Hosting, Online Photo Albums