
[脊椎] 北極熊
People brave the icy water of English Bay to celebrate the New Year during the 92nd annual Polar Bear Swim in Vancouver.
在溫哥華舉行的第92屆年度北極熊遊泳比賽中,人們冒着英吉利灣冰冷的海水來慶祝新年。
But before we all turn our thermostats down or consider joining the Polar Bear Club, can brown fat actually cause weight loss?
但在我們把所有恒溫關掉或考慮加入北極熊俱樂部之前,棕色脂肪實際上真正能讓體重減輕嗎?
As I climb through the stars, stretching myself into a constellation, the Great Polar Bear, I wonder how many millions of years it will be before a wiser species than Homo sapiens inhabits the earth?
當我穿過那些星星,伸展成為一個星座——大北極熊星座,我好奇地想,要過多少個百萬年,才能有一個比智人更智慧的物種栖息于地球?
The melting has already threatened native animals like the polar bear. Arctic melting could also affect Earth's climate.
融化已經在影響着當地動物,像北極熊。北冰洋的融化也能影響地球的氣候。
What Keeps a Polar Bear Cool in Summer?
怎麼樣使北極熊在夏天裡感覺涼爽?
Adopt a polar bear. Factoid: These animals are highly nomadic, but scientists estimate that 60 percent of polar bears live in Canada.
領養北極熊:仿真陳述:這種動物是高度遊牧的,但是科學家估計60%生活在加拿大。
The Coney Island Polar Bear Club uses the day to take a dip in the freezing waters of the Atlantic.
康尼島的北極熊俱樂部當日将舉辦冬泳活動,讓衆人暢遊在冰凍的大西洋海水中。
More than a thousand of the world's largest land carnivores migrate through the polar bear capital of the world during October and November, when the first ice forms on the edge of Hudson Bay.
每年十到十一月,當哈得遜灣開始結冰的時候,一千多隻世界上最大的陸地肉食動物北極熊就會在這個“世界北極熊之都”開始遷徙。
He does not even feel guilty for procreating with Mrs. Polar Bear.
他也沒有因為與北極熊夫人生兒育女而有愧。
Bears is an installation of giant acrylic polar bear structures which stroll around Covent Garden area both in the main market hall and outside as well.
“熊”是一個安裝巨型*********北極熊考文特花園區漫步在主要市場大廳内外,以及周圍的結構。
Food onshore is very limited and there is simply nothing comparable to a seal that provides a polar bear with fat and energy.
陸上食物是非常有限的,與提供了北極熊脂肪和能量的大海根本沒有可比性。
Polar Bear Clubs in many northern hemisphere cities near bo***s of water, have a tradition of holding organized plunges on New r's Day.
北半球國家裡有很多組織類似活動的北極熊俱樂部,它們一般都設在水域邊,也有在新年組織北極熊跳的習俗。
And what better treat could a polar bear get on a hot day but some big blocks of ice?
除了一些巨大的冰塊,在大熱天,一頭北極熊還能夠被給與什麼更加好的對待呢?
Join a polar bear club or sing along with a busker in the streets and see what happens.
加入北極熊俱樂部或者跟着街頭歌手一起賣唱看看會有什麼事情發生。
Yet, while not wanting to begrudge the polar bear his ice, we should be at least somewhat concerned at this recent shift in thinking.
然而,雖然我們并不想希望北極熊失去它的冰,我們至少應該對近期的這些意識上的轉變有一點擔心。
You think I am a stupid polar bear?
你以為我是一隻愚蠢的北極熊嗎?
Polar bear paws have thick fur and sharp claws.
北極熊的爪子有很厚的毛和銳利的鉗。
Man : Maybe you should be, boy. Why, back when I lived in Alaska, our zoo had a polar bear named Binky.
男人:也許你該害怕,小子。啊,以前我住在阿拉斯加的時候,我們的動物園有隻叫冰奇的北極熊。
Polar bear paws have thick fur and sharp claws. The fur gives them better traction on ice, while the claws are excellent weapons for hunting.
北極熊熊掌有稠密的毛和鋒利的爪。皮毛使他們能在冰面上有更大的摩擦力,爪子是捕獵的精良武器。
On her way, she met a polar bear.
在她(尋雪)途中,她遇見了一頭北極熊。
A polar bear leaps off of sea ice near Devon Island in the Canadian Arctic. Strong swimmers, polar bears have slightly webbed paws to aid in paddling.
一隻北極熊跳躍離開海冰靠近得文島位于加拿大的北極圈。強壯的遊泳者,北極熊有些微地有蹼的爪幫助劃動。
According to a news story, if global warming continues, in 20 years the only chance we'll have to see a polar bear is in a zoo.
按照一則新聞的說法,如果全球變暖持續下去,在20年内我們能夠看到北極熊的唯一的機會就是在動物園了。
Information, in this analogy, is our lion or polar bear.
信息,在這個比喻裡,就是我們的獅子或者北極熊。
Inuka the bear became famous as the first and only polar bear to be born in the tropics.
伊努卡北極熊變得知名,是因為第一次,也是唯一的在熱帶地區出生的北極熊。
While a Polar bear sleeping on an ice berg with its paws clutched around it like a toddler holding their teddy bear is truly cute.
當北極熊在冰山上睡覺時,爪子抓住周圍,就像一個蹒跚學步的嬰兒抓着他們的泰迪熊一樣,那是真的非常可愛!
In the bear family, only the polar bear is white.
在熊的家族裡,隻有北極熊是白色的。
It's from the joke of polar bear.
這是從一個北極熊的笑話來的。
|Nanook/white bear;[脊椎]北極熊
北極熊(學名:Ursus maritimus,英文名:polar bear)是現存體型最大的陸生食肉動物,主要分布于北極圈冰蓋及周邊海域。該物種具有以下典型特征:
生物學分類
北極熊屬于哺乳綱食肉目熊科,其學名"maritimus"在拉丁語中意為"海洋的",反映了其對海洋生态系統的依賴性。成年雄性體重可達350-700公斤,雌性約為雄性的一半。
特殊生理結構
北極熊的白色皮毛實際由透明中空毛幹構成,能有效反射可見光并傳導紫外線至黑色皮膚吸收熱量。腳掌生有防滑肉墊和毛發,可在零下40℃環境中保持體溫。
生态地位與食性
作為頂級掠食者,北極熊主要捕食環斑海豹,單次進食可攝入占體重10%-20%的食物。其捕獵成功率與海冰覆蓋率直接相關,冬季海冰形成期是主要狩獵季。
生存現狀
受氣候變化影響,北極海冰面積以每十年13%的速度縮減,直接威脅北極熊栖息地。國際自然保護聯盟(IUCN)将其列為易危物種,現存種群數量約2.2萬-3.1萬頭。俄羅斯和加拿大已立法禁止商業捕獵,但石油開采和航運污染仍構成持續威脅。
以下是關于英語單詞"polar bear" 的詳細解釋,結合生物學特征、文化意義及生存現狀:
polar bear(北極熊)是生活在北極地區的大型食肉哺乳動物,學名Ursus maritimus(拉丁語意為“海熊”),屬于熊科熊屬。作為現存陸地上最大的食肉動物,成年雄性體重可達300-800公斤,最大記錄超過1噸,雌性體型約為雄性的一半[]。
外觀與生理
行為與習性
主要威脅
保護現狀
The polar bear's survival depends on Arctic sea ice.
北極熊的生存依賴北極海冰。
Polar bear 不僅是一個生物學名詞,更是生态危機的符號。其生存危機揭示人類活動對地球的深遠影響,保護北極熊需全球協作減少碳排放、維護極地生态平衡。
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