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CNN News: 最小的海豚

所属教程:2021年03月CNN新闻听力 更新:03-01
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10 Second Trivia. What species of dolphin is the smallest? Hector's dolphin, Risso's dolphin, Spinner dolphin or Dusky dolphin. The smallest dolphins are Hector's dolphins. They're usually around four to five feet long and 100 pounds.

10秒快速问答。什么种类的海豚最小?赫克托海豚,里索海豚,飞旋海豚或黑海豚。最小的海豚是赫克托氏海豚。它们通常有4到5英尺长,100磅重。

And they are rare. You will only find Hector's dolphins off the coast of New Zealand and there's a subspecies of them called Maui dolphins whose population has dwindled to just a few dozen left in the wild. The biggest threat to Maui dolphins is when they're caught by accident in the fishing industry. Disease, danger to their habitat and tourism are also suspected in reducing their numbers.

而且它们很罕见。你只会在新西兰海岸找到赫克托海豚,还有一种亚种叫毛伊海豚,野生的数量已经减少到只有几十只了。毛伊岛海豚最大的威胁是容易在捕鱼业中被意外捕获。疾病、对它们栖息地的威胁以及人们怀疑旅游业也是导致它们数量减少的原因。

But there's a new eye in the sky and by that we mean a drone that aims to help Maui dolphins by locating, identifying and following them. The aircraft runs on electric and gas power. It's estimated to cost around $150.000 and it's aim is to use artificial intelligence technology to keep close tabs on the 63 adult Maui dolphins that are still alive.

但现在有了新的天空之眼——我们指的是一架旨在帮助毛伊岛海豚定位,识别和跟踪它们的无人机。这架飞机靠电力和煤气运转。该项目预计耗资约15万美元,其目标是使用人工智能技术来密切关注63只成年毛伊岛海豚。

On the opposite end of the dolphin spectrum in terms of numbers at least is the common dolphin. How common is it? Well exact numbers are hard to come by but these mammals are often found in pods by the thousand. They're common in all over the world. Their neither endangered nor threatened and when they stampede, so to speak, they're sight to see for sight seers.

在海豚谱系的另一端,至少就数量而言,是普通的海豚。它有多普遍?确切的数字很难得到,但是这些哺乳动物通常是上千个。它们在世界各地都很常见。既不濒危也不受威胁,当它们惊跑逃窜时,对观光客来说,是值得一看的。

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