You have discovered a new species. Although confirmed as real bears, individual of this new species are the size of a big rat, have yellow and grey fur and live in trees along the East River in Brooklyn, NY, USA. How would you name this new species following the binomial nomenclature and keeping in mind that other bear species have been named already (such as Ursus americanus for black bears, Ursus arctos for brown bears, Ursus maritimus for polar bears).