Please show me, what *do* you say? That a bear is the pinnacle of evolution, and even though it is a descendant of a different species (as obviously bears haven't been around since the big bang), it can't evolve into something new?
It is hardly worth the effort, but that is precisely the opposite of what evolutionists believe. Bears, along with every other species with genetic diversity, is currently in the process of evolving into other species that fit their environment even better. You want to see transitional forms?   They are all around you.