英语听力：自然百科 罕见的全黑帝企鹅

 This all black feathered king penguin¹ could be one in a zillion. The video was recorded on a sub-Antarctic island of South Georgia by National Geographic² Traveler magazine contributing editor Andrew Evans on his bus to Antarctic expedition.

 

While many king penguins³ and other penguins can have feather coloring mutations, usually the variations are partial. Doc. Allan Becker and ornithologist⁵ and head of the Department of National History of the Royal Ontario Museum called the discovery of all black king penguin astonishing. He jokingly said it's one in a zillion kind of mutation⁴ and scientifically calls it very rare. He explains that typically melanistic birds will have white spots where melanin pigmentation has failed to color the feathers, but it's extremely rare for there to be melanin deposits over the entire breast of the bird. Photographer Evan says he almost did get the citing recorded as he got his camera positioned, the penguins started walking away.

1 penguin   

n.企鹅

参考例句：

• The penguin is a flightless bird.企鹅是一种不会飞的鸟。
• He walked with an awkward gait like a penguin.他走路的步子难看得就像企鹅。

2 geographic   

adj.地理学的，地理的

参考例句：

• The city's success owes much to its geographic position. 这座城市的成功很大程度上归功于它的地理位置。 来自《简明英汉词典》
• Environmental problems pay no heed to these geographic lines. 环境问题并不理会这些地理界限。 来自英汉非文学 - 环境法 - 环境法

3 penguins   

n.企鹅( penguin的名词复数 )

参考例句：

• Why can penguins live in cold environment? 为什么企鹅能生活在寒冷的环境中？ 来自《简明英汉词典》
• Whales, seals, penguins, and turtles have flippers. 鲸、海豹，企鹅和海龟均有鳍形肢。 来自《现代英汉综合大词典》

4 mutation   

n.变化，变异，转变

参考例句：

• People who have this mutation need less sleep than others.有这种突变的人需要的睡眠比其他人少。
• So far the discussion has centered entirely around mutation in the strict sense.到目前为止，严格来讲，讨论完全集中于围绕突变问题上。

5 ornithologist   

n.鸟类学家

参考例句：

• That area is an ornithologist's paradise.那个地区是鸟类学家的天堂。
• Now I know how an ornithologist feels.现在我知道做为一个鸟类学家的感受了。