白色变型白变(Leucism)是由于发育缺陷使体毛、羽毛或皮肤的部分普遍缺乏色素细胞黑素细胞进而呈现白色的动物,但通常不影响其眼睛的颜色,并与主要是缺乏黑色素但保有色素细胞或黑素细胞的白化症有所不同。

代表性的白变动物有白虎白狮、白孔雀、柯莫德熊等。

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