<classify> Nhwehwɛmuyɛfo a wɔwɔ Princeton Suapɔn mu wɔ United States ne Uppsala Suapɔn mu wɔ Sweden bɔ amanne sɛ no yɛ generation abien pɛ, na wɔsusu saa kwan yi adi akyɛ paa de, esiane breedindg a ɛkɔɔ so wɔ endemic Darwin finch, Geospiza fortes ne immigrant cactus finch, Geospiza conirostris.  <topic>: sciencetechnology 