Anas acuta

同根派生

A duck(Anas acuta) of the Northern Hemisphere, having gray, brown, and white plumage and a sharply pointed tail.
針尾松雞北半球一種鴨（針尾鴨），有灰色、棕色和白色羽毛及尖尖的尾巴
Lesser Scaup Aythya affinis, Northern Pintail Anas acuta, and several sea ducks are showing troubling declines, but most geese are increasing dramatically and many ducks have held steady.
一些鳥類如針尾鴨和海鴨等的數量仍然在下降，但是大多數雁類的數量都有了明顯增加，很多鴨子的數量也保持穩定。
It's very fortunate," Anas said.
這是非常幸運的事。”
ANA was detected in 73 of 92 patients((79.35%)).
92例PBC患者中有73例(79.;35%25)血清中存在抗核抗躰(ANA);
Tests such as ANA and ANCA help.
測試抗核抗躰和抗中性粒細胞抗躰可幫助診斷。