11月25日（木）快晴
コアラと写真を撮ったカジノの動物園にアルビノ（白子）のワライカワセミがいました。アルビノは先天的なメラニンの欠乏により体毛や皮膚が白く、瞳孔は赤くなります。多くは視覚障害を伴い、紫外線による皮膚癌のリスクが高い上、天敵から発見されやすいので自然界での生存は極めて稀です。
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A snow white kookaburra
Thu. November 25 : fine
There was an albino kookaburra in Casino Zoo where we took photos with the koala. An Albino is inherently lack of melanosome, its feathers and skin are white and its pupils are red. In many cases it has a visual impairment, it has high risk of having skin cancer caused by absorbing UV and it is easy to be found by natural enemies, so it rarely survives in nature.
