[Ntrails]

Rights are a human concept. Not, incidentally, one I have any belief in. However this is not the place for a rights vs responsibility debate.

How do you ascribe 'Human' rights?

Currently it is humans vs everything else. To include dolphins is to rewrite it as "Anything which meets these intelligence or sentience criteria". Which is fine, until you deal with the human beings which do not meet either criteria. To treat them differently is to ignore the whole argument that we are not special. So rewrite the concept as "Anything where a single member meets the criteria" - and that is where you end up.

Personally I agree that we are not special, but that is where I diverge with the author.