黒貂[kuroten] sable (Martes zibellina)
対馬貂[tsushimaten] Tsushima marten (Martes melampus tsuensis, a subspecies of the Japanese marten)
胸白貂[munajiroten] stone marten

蝦夷黒貂[ezokuroten] Japanese sable (subspecies of sable native to Hokkaido, Martes zibellina brachyura)
貂熊[kuzuri] wolverine (Gulo gulo)

お歯黒[ohaguro] tooth blackening
暗黒期[ankokuki] eclipse period
暗黒時代[ankokujidai] Dark Ages
暗黒大陸[ankokutairiku] Dark Continent (i.e. Africa)
黒い[kuroi] black

黒い霧[kuroikiri] thick fog
黒くする[kurokusuru] to blacken
黒ずむ[kurozumu] to blacken
黒っぽい[kuroppoi] dark