ʻO nā kukuna he iʻa pālahalaha. Noho lākou ma nā kai a pau o ka honua a ma ke kai hohonu. He kino palahalaha loa ko lakou, a he huelo loihi a lahilahi. Hoʻohui pū ʻia ke kino, ke poʻo, a me nā ʻili nui. No laila, ʻike ʻia nā mea āpau "hoʻokahi ʻāpana".
Hiki i nā kukuna ke ulu i ʻeiwa mau mika ka lōʻihi. Aia ka waha, nā puka ihu, a me nā ʻili ma lalo. Aia ma luna nā maka a me nā puka hoʻoheheʻe e komo ai ka wai e hanu. Ma ka ʻaoʻao o luna, hiki i nā kukuna ke hoʻololi i ke kala e like me ka papahele moana. ʻO kēia ke ʻano o kā lākou kāmele iā lākou iho. ʻAi nā kukuna i nā ʻiʻo, nā pāpaʻi, ka iʻa hōkū, ke kai, ka iʻa, a me ka plankton.
He iʻa cartilaginous nā kukuna. ʻAʻole i hana ʻia kou iwi i ka iwi akā ʻo ka cartilage. No ka laʻana, loaʻa iā mākou ka cartilage i kā mākou auricles. Aia he 26 mau ʻohana me 600 mau ʻano kukuna like ʻole. He mea ʻawaʻawa ko ka stingrays ma ka hope o ko lākou huelo.
Aneane pau nā kukuna ʻōpiopio i loko o ke kino o ka makuahine, hoʻokahi wale nō ʻohana kukuna e hoʻohua ana. ʻO nā stingrays mai kekahi ʻohana ʻē aʻe i kapa ʻia ʻo stingrays. Haʻi lākou i kā lākou koʻi ma ke kino a ma ke poʻo, e hou ana i ko lākou mau hoa paio. Puka mai ka mea make mai loko mai o ke kohu.