Who is the standard H. Sapiens? Is it me? My grandchild? My great great grandfather? With whom does one have to be able to mate successfully to be considered H. Sapiens? It's not as though a group will be born without the ability to successfully mate with the generation before them. There is no prime mammal.
Mules have been born that are fertile. Does that mean horses and donkeys are the same species?
What about ring species?
I never said Chimps were human(although some biologists disagree). I did, however, imply that some chimps are people.
"Human" and "Person" are distinctly separate concepts. As I said previously, one of them is morally relevant and the other is not.
Do you have data on abstract communication with chimps? That is, discussing things like geometry, calculus, philosophy, etc. I haven't seen that data.
How do you define abstract thought? Chimps have been shown to be able to deceive each other. That shows they have some concept of what other beings are thinking; what they know. It also shows they have a concept of multiple future possibilities.
Chimps have been able to associate order to numbers. Is that abstract?
I didn't say to treat all species the same. In fact, when I said species membership is irrelevant, I meant species membership is irrelevant. Properties of individuals should be considered(however properties of the majority of the species can be used as a general thumbrule in many circumstances). To treat a being solely based on it's species is not only speciest, but tantamount to nepotism in ethical consideration.
To easily cast aside the well being of people because they don't fit into your arbitrarily drawn group(again, where does our species end. See Dawkins quote above.) is frankly sickening. What makes it permissible to discriminate against sentient beings simply because they are not in your group? Why stop at species? Why not draw the line at race or sex? Hell, why not choose occupation or location?
Lovely strawman there. Is the mantis a person? Oh, it isn't? Well, it's not a fair comparison then, is it?
If you want to hear it expressed better, try Rethinking Life and Death. It's a great read.