[神奇的吸引力]神奇的吸血鬼乌贼:能把自己翻个个儿!(视频)


英语听力 2020-03-26 14:37:44 英语听力
[摘要]The vampire squid can turn itself inside out to avoid predators—as seen in a video just released b能力提升英语听力

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The vampire squid can turn itself "inside out" to avoid predators—as seen in a video just released by the Monterey Bay Aquarium Research Institute to emphasize the need to protect deep-sea species from the effects of human activities.

© 2010 National Geographic; source video prepared by the Monterey Bay Aquarium Research Institute

相关阅读:吸血鬼乌贼(学名 Vampyroteuthis infernalis)是一种发光的生物,身体上覆盖着发光器官,这使得它们能随心所欲地把自己点亮和熄灭,当它熄灭发光器时,它在自己所生存的黑暗环境中就完全不可见。吸血鬼乌贼身体上长着两只大鳍,形态像胶冻和水母。就像是从午夜科幻电影中游出来的一样。

吸血鬼乌贼发光的时候还是蛮漂亮的,好像海里用耳朵飞行的小飞象。而且它是一种游速非常快的小动物,一秒钟最快可以游过两个身长,而它加速到这个速度只需要5秒钟,面对敌害它还可以像瞪羚一样连续做急转弯。

视频文本(Unedited Transcript)

This menacing looking squid is just one of many species “out of sight and out of mind” that could be threatened by human activities far away from the part of the ocean in which they live.

The Monterey Bay Aquarium Research Institute has released this video of the vampire squid to emphasize a report that raises a red flag about the earth"s oceans.

Vampyroteuthis infernalis is a type of living fossil, meaning that it has seen very little change since it first appeared, before dinosaurs, about 300 million years ago.

The Monterey Bay Aquarium Research Institute’s Dr. Bruce Robison, who authored the report published in Conservation Biology, narrates the institute’s video:

“Vampyroteuthis has very large eyes, because it lives about a half a mile deep in the ocean, where the light is very dim. We took these pictures from a deep diving robotic submarine. And you can see the reflection of our lights in that beautiful blue eye.”

The vampire squid has 8 long arms, and a long curly strand that serves as a sensory filament.

It has a unique ability to react when it is startled. It can curl its web and arms around the rest of its body—turning sort of ‘inside out.’This change in appearance may help it avoid being attacked by predators.

These cephalopods --they"re technically not squids-- live in the deep ocean with millions of other species, some of which are little-known and on which little study has been done.

Robison says human activities threaten all of these.

“They are threatened by ocean warming, decreasing oxygen, pollution, overfishing, industrialization and dozens of other changes taking place in the deep. We have a responsibility to learn all we can about these amazing animals and to protect them from the greatest danger to life in the deep: the human species.”

Robison"s focus is on the oceans"“deep pelagic zones” which extend down from about 330 feet below the surface to just above the deep seafloor—up to six miles below the surface.

While the sea floor has had significant study, he points out little exploration has been done on this water above the deep floor.

This zone is home to species eaten by fish that humans eat, such as tuna and salmon. Many whales, turtles and giant squid also rely on this zone for their food.

Even though all of this is out of sight, any upset in the balance here can ultimately have a devastating effect on what humans have come to expect from the oceans – a place that provides food for millions of people.

对动物感兴趣?那你一定不会错过这里: 闻所未闻!14种凶残诡异的史前怪物>>

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