ʻOi aku ka kiʻekiʻe o ka noʻonoʻo naʻauao o nā kākā a me nā koʻo ma mua o nā monkey

Paukū “ʻO ka parrot akamai loa” Ua aʻo mākou i kekahi mau ʻano o kēia mau manu maikaʻi a hiki i ka hopena ʻaʻole i aʻo piha ʻia ka naʻauao o nā manu, no ka mea, ke hoʻohauʻoli nei nā manu iā mākou i kā lākou ʻano a me ka hiki ke hopu i ka lele.

ʻOiai ʻo ka hiki ʻana o nā manu e like me nā primates, a ʻo ko lākou lolo ka nui o ka wōnati, ua hōʻike lōʻihi ʻia ʻaʻole i loaʻa i nā manu ke ʻano cerebral cortex e like me nā holoholona. Akā ʻaʻole kēia e pale i nā parrots nui a me nā corvids mai ka hahau ʻana i ke kanaka me ko lākou mau naʻauao.

Aia ka pane i ka nui o nā neurons. Ua ʻōlelo ʻia kēia ma ka paʻi ʻana o ka makasina Nā hana o ka National Academy of Sciences of the USA.

Ua aʻo kekahi hui ʻepekema mai ke Kulanui ʻo Vanderbilt, me nā hoa hana mai ke Kulanui ʻo Charles ma Prague a me nā mea noiʻi mai ke Kulanui o Vienna, alakaʻi ʻia e Susanne Herculano-Hosel a me Pavel Nemech, i aʻo i ka helu o nā neurons i loko o ka lolo o nā ʻano manu 28 a hoʻohālikelike i ka nā hopena me ka helu o nā neurons i loko o ka lolo o nā holoholona. Ua ʻike ʻia i loko o ka lolo o nā manu mele a me nā parrots, ʻelua ka nui o nā neurons i nā primates, a ke hoʻohālikelike ʻia me nā rodents, a laila 4!

Lawe ʻia nā laʻana lolo o ka nui like e ka hoʻokaʻawale anatomical, e helu ana i ka huina o nā cell i hoʻokuʻu ʻia mai ka ʻiʻo hopohopo.

Ua hiki i nā mea noiʻi ke hōʻoia me ka cortex kaumaha 14,4 grams i ka macaw, ʻo ka helu o nā neurons he 1,9 biliona, ʻoiai ma ka macaques, me ke kaumaha o ka lolo o 69,8 grams, 1,7 biliona wale nō.

ʻO kēlā helu nui o nā neurons i kahi leo liʻiliʻi i kumu i kā lākou hoʻonohonoho paʻa. ʻOi aku ka liʻiliʻi o nā pūnana nerve o nā manu ma mua o nā mammals, ʻoi aku ka pōkole o nā kaʻina hana, a ʻoi aku ka paʻakikī o nā synapses. ʻO kēia ka mea e hiki ai i nā manu ke hoʻohui i kahi paona liʻiliʻi no ka maʻalahi o ka lele me nā mana cognitive kupaianaha i ʻoi aku ma mua o ko nā rodents a me nā primates haʻahaʻa.