I wouldn't say it's the same, I wouldn't say sexism and racism are the same.. you've got to take speciesism as it's own area of discrimination, which holds parallels but is ultimately separate.
Also, I think there'd be a lot of people who fought for civil rights in relation to race who might find that offensive... and ultimately people who are offended are people who won't show interest in animal rights/welfare/liberation?
But, I'm a white male, who's relatively straight with middle class parents so I'm prepared to be schooled by pretty much anyone on the discrimination front.
Although they are two different things, the bottom line of the two are identical; discrimination based on difference. I think that is what Tara was probably getting at.
Being an italian-aboriginal-bisexual of an odd family, I know a little bit about discrimination, but I can tell you now, speciesism is in not the same as racism, sexism, ageism or prejudice against other humans in any way, because animals cannot stand up for themselves. In every other sort of discrimination, the discriminates have defended themselves. Animals cannot (if they could they would be shot on the spot, or put to sleep). Really... specisism should have a separate class of its own, it is completley unjust, and there is no defence to it, other than forcing veganism down other peoples throats. We ourselves are kind enough to realise that this barbaric torture of animals is insane and cruel, but for those that are outside the veg society of awesomeness, meat is an important, necescary thing for survival, and best of all 'it tastes good'. Where people can associate with other humans, no matter what age, race or gender, it is a little harder to associate rock with feather. They are both objects, but they aren't the same.
Specisism is, in my opinion, a separate sort of discrimination, because those being descriminated against don't even know that they are. All they know is a life of pain, suffering, torture and, ultimatley, death. It's a sad but true story, that WILL be turned around, as the ignorant ones are shown the truth behind the meat industry.
GO VEGGIE POWER!!! glad I got my crazy debate off my chest. Now i can go to sleep