(I've read once that Dolphins may be almost as sentient and sapient as we are. In this case, they should have right they currently don't have.)
Like which ones? The useless (to dolphins) ones such as freedom of speech or owning property, or the ones many humans don't have like kind treatment and living in an uncontested land like they used to?
The second kind of course. Priority should still be given to humans (if only because it's my specie), but we should keep in mind the other animals, especially the most advanced ones.
I suspect however that once the world treats its humans well (if ever), then the other animals will also be in much better shape.
Like which ones? The useless (to dolphins) ones such as freedom of speech or owning property, or the ones many humans don't have like kind treatment and living in an uncontested land like they used to?