Weaver,
I hope you see the difference between someone who can't imagine not sharing their lives with animals in ways that help everyone involved, and someone who can't imagine not sharing their lives with animals they deliberately captured/bred in order to have their company.
Sabriel,
Then do you identify yourself as someone who uses animals only as means to your ends?

Your previous posts did not seem to indicate that.
I don't know what "bubble" you are talking about. Few other animals enslave others in any way, yet they are not isolated. What makes you think that if humans also did not enslave others, they would live in a bubble?
Ly&Pigs,
Is not animal rights (and slippery slope arguments against it) political as well, but allowed? I'm not talking specific political parties, but giving a valid analogy as an argument. Others have used this in the past. Excerpt from Animal rights and Human Obligations:
In fact, in the past the idea of "The Rights of Animals" really has been used to parody the case for women's rights. When Mary Wollstonecraft, a forerunner of later feminists, published her Vindication of the Rights of Women in 1792, her ideas were widely regarded as absurd, and they were satirized in an anonymous publication entitled A Vindication of the Rights of Brutes. The author of this satire (actually Thomas Taylor, a distinguished Cambridge philosopher) tried to refute Wollstonecraft's reasonings by showing that they could be carried one stage further.
Is it really so off topic and political to say that if the slippery slope argument is not reason enough to withhold rights from humans, it is not reason enough to withhold rights from animals?
fairysari,
Some people don't discriminate based on species within kingdoms, just on kingdoms themselves. (I don't discriminate based on either, if that wasn't obvious.) Taxonomy is morally irrelevant, both when it comes to humans and cavies or animals and plants.
A lion probably doesn't think "birds have a right to live and antelopes don't" or whatever. They just hunt according to instinct and what they were taught as cubs, whatever is an easier/bigger meal, etc.
Humans certainly are biological animals (being a naturalist, I don't think "free will" exists), but some of them also have the ability to reason and use that ability to temper other motivations...or use it to rationalize other motivations.
Since subjective experience is impossible to know in any organism except firsthand in the self, it's impossible to be 100% certain that, for example, your neighbor is sentient and actually feels pain if you punch him in the face. However, since he likely has a central nervous system (I think it would take a really paranoid person to believe that the government has planted a very realistic robot next door) which has the necessary "hardware" for nociperception, it is most reasonable to conclude that he probably is sentient and, further, does prefer to no be punched in the face. This goes for any other being. The more evidence we have (whether on sentience itself or specific interests of a being), the more sure we can be.
Access,
So if a slave owner responds to stimuli provided by the slave, you think the slave has more control than the owner and therefore justifies the slavery? That's a pretty weird way of thinking.
Also, people who unthinkingly do everything the dog prompts them to can be setting them all up for trouble. This control is the essence of dominance, and yes, some dogs are smarter than their masters

Too bad this often works to the dog's disadvantage when it results in neglect (because the owner cannot handle the dog) or even death (because the dog is deemed "aggressive"). Both cases show what happens when one being is ultimately more powerful even if less smart and easily manipulated in a few ways.