欢迎来到VOA在线收网 www.voa365.com
当前位置:VOA NEWS > VOA慢速英语 > 自然探索 >

Glacier Bay: A Land Reborn

2016-11-26 19:49来源:未知


One of the many glaciers found in Glacier Bay National Park

This week in our travels through America’s national parks, we revisit the state of Alaska. The northernmost state is home to eight major national parks.


Today, we visit one of its most famous parks – Glacier Bay. This huge park in the southeastern part of the state covers more than 1 million hectares of Alaskan wilderness. It includes mountains, glaciers, fjords, and even rainforests.


Glacier Bay supports hundreds of kinds of animals, including many species of birds, fish, bears, whales and sea lions.


As its name suggests, much of Glacier Bay National Park is covered by glaciers. A glacier is a large area of ice that moves slowly down a slope or valley, or over a wide area of land. Glaciers cover more than 5,000 square kilometers of the park.


Glacial ice has shaped the land over the last seven million years. The glaciers found in the park today are what remains from an ice advance known as the Little Ice Age. That period began about 4,000 years ago.


A land reborn


During the Little Ice Age, the cold weather caused the ice to grow and advance. That growth continued until the 1700s, when the climate began to warm. The hotter temperatures caused the ice to start melting. That melting led the huge glacier to separate into more than 1,000 different glaciers.


The extremely tall and jagged mountains seen in Glacier Bay National Park were formed by the ice advancing and then melting over time. The melting of the ice also created water that filled in and created the many fjords within the park. Fjords are narrow parts of the ocean that sit between cliffs or mountains.


The huge amounts of water from the melted ice killed off many kinds of plants. Vegetation returned to the area over the next 200 years. The regrowth in plants also brought back many animals to the land. This return of life to Glacier Bay is why it is sometimes called “a land reborn.”


A people of tradition


There is evidence that people have lived in the area for several thousands of years. Glacier Bay is the homeland of the Huna Tlingit people. The Tlingit are an Alaskan Native tribe. They live throughout southeastern Alaska. They began settling in the Glacier Bay area after the last ice age, once the glaciers began to retreat.


Today, the Tlingit people live a modern life. But they also practice traditions unique to their culture. In the past, the Huna Tlingit harvested gull eggs every year. Gulls are large gray and white birds that live near the ocean. Gull eggs are an important type of food for the Huna Tlingit. Family harvest trips served as a way to keep ties with their homeland and to pass on stories, moral codes, and cultural traditions to the younger generation.


In the 1960s, the Migratory Bird Treaty Act forced them to stop collecting gull eggs.


Together with the National Park Service, however, they have worked to create a sustainable way for them to continue practicing this tradition.


Discovery and protection


One of the first major expeditions to the area took place in 1794. Lieutenant Joseph Whidbey arrived near Glacier Bay aboard the HMS Discovery, a British Royal Navy ship. The expedition was led by Captain George Vancouver.


At that time, the bay was still almost completely filled with ice. The crew described the scene as “a compact sheet of ice as far as the eye could distinguish.”


In 1879 the naturalist John Muir visited the area to do research. He found that glacial ice had melted back almost 50 kilometers, and had formed a bay.


After his visit, Muir and other conservationists urged Congress to protect this special area.


In 1925, President Calvin Coolidge made Glacier Bay a national monument. It did not become an official national park, however, until 1980.


In 1992, Glacier Bay became part of a huge World Heritage Site along the border of Canada and the United States. The 9.7 million-hectare site is the largest internationally protected area in the world.


Coastal wildlife


One-fifth of Glacier Bay National park is ocean water. And, no point within the park is more than 50 kilometers from the coast. Most animals living here depend on the water or shoreline.


Glacier Bay is home to brown bears and black bears. They are found in the forests, as well as along the coastline. They feed on berries and plants found in the woods. They also feed on the fish found in the waters.


Humpback whales also feed on fish in Glacier Bay’s waters. Whales are large mammals that live in the ocean. Humpbacks can weigh more than 35,000 kilograms. They come to Glacier Bay every summer for one main reason: food. They feed on small fish in the water. They eat more than 450 kilograms of food each day. They remain in Glacier Bay for about five months each year.


There are also 281 species of birds in Glacier Bay. These include gulls, guillemots, puffins, murrelets, and cormorants. Many of these birds make nests on cliffs. They eat small fish and other sea life.


Other animals found in the park include moose, mountain goats, Stellar sea lions, Harbor seals, Harbor porpoises, and sea otters.


Exploring the Park


Glacier Bay is a popular place for people searching for adventure. Some visitors choose to explore the park by kayak. The small, narrow boats offer visitors a chance to experience the park’s many fjords and its hundreds of kilometers of coastline.


Hiking and camping are also popular activities in the park. But, hikers and campers must have respect for the harsh and remote environment. Weather and water conditions can be extreme. Food can also be limited in this area. There is only one official campground, located in Bartlett Cove. But camping is permitted along any of the shores or forests found in the park. This kind of camping is called backcountry camping.


Another popular way to visit the park is by boat or ship. Cruise ships and tour boats make regular trips into the park. Passengers are able to see the park’s glaciers up close. These glaciers are always changing. Visitors may witness huge pieces of ice breaking apart from the glacier. This is known as “calving.” When the ice falls into the water, it creates a loud, thunder-like noise.


From glacial fjords to mountain peaks, Glacier Bay holds some of the continent’s most awe-inspiring natural wonders. It is a land reborn, and a place that continues to change with time.

Words in This Story


bay – n. a large area of water that is part of an ocean or lake and partly surrounded by land


compact – adj. closely or firmly packed or joined together


fjord - n. a narrow part of the ocean between cliffs or steep hills or mountains


glaciern. a very large area of ice that moves slowly down a slope or valley or over a wide area of land


inspiringadj. causing people to want to do or create something or to lead better lives


jaggedadj. causing people to want to do or create something or to lead better lives


kayakn. a long narrow boat that is pointed at both ends and that is moved by a paddle with two blade


naturalistn. a person who studies plants and animals as they live in nature


retreatv. the act or process of moving away


speciesn. a group of animals or plants that are similar and can produce young animals or plants


uniqueadj. something or someone is unlike anything or anyone else


vegetationn. plants in general


  1. 网传日月光Q4产能利用率降至70%
  2. 新型存储器已经开始增长,到20
  3. 市场人士透露:联发科在汽车芯片
  4. 【VOA在线闲聊】三星收购Arm会步英
  5. Nikola召回迄今为止生产的93辆Nik
  6. 蚂蚁数科两项区块链专利完成一对
  7. 蔚来申请注册“NIO CERTIFIED 蔚来官
  8. 获小米超千万投资 改装车公司工
  9. 法拉第未来首款电动汽车FF 91再次
  10. 消息称LG显示计划明年生产920万块
  11. 宝马面向欧洲市场推出最小的跨界
  12. 美国副总统哈里斯承诺就电动汽车
  13. 知情人士透露称马斯克和推特CE
  14. 因苹果缩减订单 台积电或修改明
  15. LG推出一项新技术,以开放局域网
  16. 小米13正式上线:骁龙8Gen2发布1
  17. 米家3 KG迷你洗衣机售价699元
  18. 苹果公司官方非常兴奋:印度将生
  19. 中国广电在全国31个省区开通广电
  20. 华为 Mate 50 Pro国外上市:售价远高
  21. 特斯拉柏林超级工厂回收工厂发生
  22. 华为 Mate 50原价4999
  23. iPhone 14销售比上一代下降了11%
  24. 2021至2025中国台湾将投350亿元新台
  25. 华为Mate50Pro预定5 G芯片,苹果公司
  26. 锐龙7000核显性能实测 单核及多核
  27. 索尼PS5最新更新:6 nm制程功率与
  28. 华为会议马上就要开始了!一种全
  29. 小米再次成为了冠军!该系列产品
  30. 还能吸收病毒?!戴森首个产品也
  31. 小米又推出了一款新产品,售价
  32. Imagination携手百度飞桨创建Model
  33. 奔驰要不要再加价?2024将发布
  34. TikTok在英国或被罚款2900万美元 被
  35. iPhone15PM改用 ULTRA:笔记本和 iPa
  36. 因库存不断提升存储芯片持续降价
  37. 预计小米Civi2将推出五款新产品
  38. 可靠商务桌面电脑推荐:联想M4
  39. 受飓风影响:NASA撤回阿尔忒弥斯
  40. 《三体》影迷们疯狂了!
  41. 4090设计实在是太离谱了!
  42. Meta试图Facebook和Instagram账户添加到
  43. 苹果公司在技术上遭受重大挫折,
  44. 我国成功发射遥感三十六号卫星,
  45. 骁龙8Gen2+120 W快速充电!小米13系
  46. 屏幕下手机价格大跌,灵动岛安卓
  47. 亚马逊宣布下月举办新会员促销活
  48. 酷睿i9-13900K预告片,5.8 GHz稳定!
  49. 美国流媒体巨头Netflix宣布在芬兰
  50. 外科手术机器人 商业化将加快世