This is because their red blood cells, the major component is a blue blood protein hemoglobin, rather than, the copper-blue blood, blue and green was, therefore, also known as ceruloplasmin.

• 这是因为它们红细胞内主要成分是一种血蓝蛋白而不是血红蛋白，这种血蓝蛋白含铜，呈蓝绿色，因此也叫铜蓝蛋白。