So far, just those entities similar to humans. But (1) the set of other people regarded by society as belonging to "the ingroup" (i.e., valued, treated with res

So far, just those entities similar to humans. But (1) the set of other people regarded by society as belonging to "the ingroup" (i.e., valued, treated with respect) has steadily broadened over the centuries, at least in the West, and I'd expect that to continue, eventually embracing quite alien notions of intelligence; (2) I personally think intelligence is not the best measure of what deserves respect in any case -- rather, it's the combination of capacity to suffer and willingness to limit one's own actions to reduce the suffering of others.