Ƙadangare jam'in shi shine ƙadangaru, mace kuma ana ce mata ƙadangaruwa. yana daga cikin dabbobi masu tafiya da ƙafa huɗu a wani bincike kuma ana cewa yana daga dabbobi masu rarrafe. Kuma kusan ko ina a faɗin duniya ana samun shi, sai dai kaɗan daga cikin wasu yankuna irinsu, Antatika da Island. Ƙadangare da mage. Ƙadangaru suna nan nau'i daban-daban wato kala-kala akwai ja, baƙi mai ratsin fari, yalo da dai sauran kaloli. Haka kuma Nau'ukan ƙadangaru (species) yakai dubu shida (6,000). Ƙadangaru suna faɗa da junansu musamman maza daga cikinsu kuma mafi akasari suna faɗan ne saboda mata. Ƙadangaru suna cin ƙwari ne a matsayin abincinsu amma wani lokacin suna cin abincin da mutane suke ci kamar tuwo, wake da sauran su. Mafi akasarin ƙadangaru ƙanana ne girman su madaidaici ne, kamar tsaka Ko da yake tsaka tana cikin jinsin ƙadangaru. Mafi yawan ƙadangaru ƙwai sukeyi don haihuwa, sukanyi ƙwai kusan ɗari.