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Pacific’s Gray Whale Found off Atlantic Coast
Scientists have confirmed the presence of a gray whale off New England in North America recently.
The large sea animal disappeared from the Atlantic Ocean two centuries ago. The scientists are thrilled with the discovery but they say it shows the effects of climate change on sea life.
Researchers with the New England Aquarium1 in Boston found the gray whale on March 1. At the time, they were flying about 48 kilometers south of Nantucket, an island off the coast of Massachusetts in the Atlantic. The whale, which can weigh over 27,000 kilograms, usually lives in the northern Pacific Ocean.
The gray whale disappeared from the Atlantic Ocean by the 18th century. But there have been five observations of the animal in the Atlantic and Mediterranean2 waters in the last 15 years, the aquarium said in a statement. The whale found this month was likely the same animal observed off the coast of Florida late last year, the aquarium said.
The researchers who found the animal off Massachusetts said they were not sure at first. But after circling the area for 45 minutes, they were able to take photographs that confirmed it was a gray whale.
"I didn't want to say out loud what it was, because it seemed crazy," said Orla O'Brien. She is a research scientist with the Anderson Cabot Center for Ocean Life at the New England Aquarium.
Scientists said they were thrilled to see the animal, but its presence probably has to do with the warming of the planet. The Northwest Passage, which connects the Atlantic and Pacific oceans through the Arctic3 Ocean in Canada, has lacked ice in the summertime in recent years, they said.
That means gray whales can travel through the passage in the summer when normally they would have been blocked, the scientists said. O'Brien said the animal's arrival off New England serves "as a reminder4 of how quickly marine5 species6 respond to climate change, given the chance."
Gray whales were almost completely killed off by hunting during the years of commercial whaling. Today, the whales have recovered to the point that they are considered a species of "least concern" by the International Union for Conservation of Nature. The organization, however, considers the western population of whales that live off the coast of Asia to be endangered.
They can be identified by the lack of a part of a body often seen on other whales: a dorsal7 fin8. Also, they can be identified by their blotchy9 appearance which is different from the humpback and minke whales seen off New England. Gray whales can also be identified by the unusual sounds they make.
Words in This Story
thrill – n. a feeling of great excitement or happiness
crazy – adj. very strange or unusual
marine – adj. of or relating to the sea or the plants and animals that live in the sea
species – n. a group of animals or plants that are similar and can produce young animals or plants
commercial – adj. concerned with earning money
blotchy – n. a usually dark-colored spot especially on the skin
1 aquarium | |
n.水族馆,养鱼池,玻璃缸 | |
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2 Mediterranean | |
adj.地中海的;地中海沿岸的 | |
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3 Arctic | |
adj.北极的;n.北极 | |
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4 reminder | |
n.提醒物,纪念品;暗示,提示 | |
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5 marine | |
adj.海的;海生的;航海的;海事的;n.水兵 | |
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6 species | |
n.物种,种群 | |
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7 dorsal | |
adj.背部的,背脊的 | |
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8 fin | |
n.鳍;(飞机的)安定翼 | |
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9 blotchy | |
adj.有斑点的,有污渍的;斑污 | |
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