用英語怎麼介紹海豹

① the kal seal（ 貝加爾湖海豹 ）的英文簡介，做演講用的材料，好的話追加懸賞。

來源 網路

The Baikal seal, Lake Baikal seal, or nerpa (Pusa sibirica, obsolete: Phoca sibirica), is a species of earless seal endemic to Lake Baikal in Siberia. Like the Caspian seal, it is related to the Arctic ringed seal. The Baikal Seal is the smallest of the true seals, and with the exception of a subpopulation of inland harbour seals living in the Hudson Bay region of Quebec, Canada (lac de loups marins harbour seals), they are the only exclusively freshwater pinniped species.

It remains a scientific mystery how the seals originally came to Lake Baikal, hundreds of kilometers from any ocean. Some scientists speculate the seals arrived at Lake Baikal when a sea-passage linked the lake with the Arctic Ocean (see also West Siberian Glacial Lake and West Siberian Plain).

The total population is estimated to be over 60,000 animals, and hunting of the seals, once widespread, is now restricted.

The Baikal seal is one of the smallest true seals. The alt grows to be around 1.3 m (4 ft 3 in) in length with a body mass from 63 to 70 kg (140 to 150 lb).[3] The animals show very little sexual dimorphism; the males are only slightly larger than the females.[3] They have a uniform, steely-grey coat on their backs and fur with a slightly more yellow tinge coating their abdomens. As the coat weathers, it becomes brownish.[4] When first born, pups are around 4.5 kg (9.9 lb) and have a coating of white, silky, natal fur. This fur is quickly shed and exchanged for a darker coat, much like that of the alt. Rare Baikal seals can be found with spotted coats.

The Baikal seal lives only in the waters of Lake Baikal.[5] It is something of a mystery how Baikal seals came to live there in the first place. It can be speculated they swam up rivers and streams or possibly Lake Baikal was linked to the ocean at one point as the result of a large body of water, such as the West Siberian Glacial Lake or West Siberian Plain, formed in a previous ice age. The seals are estimated to have inhabited Lake Baikal for some two million years. The Baikal seal, the Saimaa ringed seal (Pusa hispida saimensis), and the Ladoga seal (Pusa hispida ladogensis) are the only exclusively freshwater seals.

The areas of the lake in which the Baikal seals reside changes depending on the season, as well as some other environmental factors. Baikal seals are solitary animals for the majority of the year, sometimes living kilometers away from other Baikal seals. In general, there is a higher concentration of Baikal seals in the northern parts of the lake, because the longer winter keeps the ice frozen for longer, which is preferable for pupping.However, in recent years, there have been migrations to the southern half of the lake, possibly to evade hunters.[3] In winter, when the lake is frozen over, seals maintain a few breathing holes over a given area and tend to remain nearby, not interfering with the food supplies of a nearby neighbour. When the ice begins to melt, the Baikal seals tend to keep to the shoreline.

The Baikal seal』s main food source is the golomyanka, found only in Lake Baikal. Baikal seals eat more than half of the annual proced biomass of golomyanka, some 64,000 tons.[4] Baikal seals also eat some types of invertebrates,[4] and the occasional omul. They feed mainly at night, when the fish come within 100 m (330 ft) of the surface. They feed with 10-20 minute dives, although this is hardly the extent of their abilities. Baikal seals have two liters more blood than any other seal of their size and can stay underwater for up to 70 minutes if they are frightened or need to escape danger.

The Baikal seal is blamed for drops in omul numbers; however, this is not the case. The omul』s main competitor is the golomyanka and by eating tons of these fish a year, Baikal seals cut down on the omul』s competition for resources.

Baikal seals do have one unusual foraging habit. In the early autumn, before the entire lake freezes, they migrate to bays and coves and hunt sculpin, a fish that lives in silty areas and as a result usually contains a lot of grit and silt in its stomach. This grit scours the seals' gastrointestinal tracts and gets rid of parasites.

② 海豹的英文

seal
英 [si:l] 美 [sil]
n.密封;印章;海豹;封條v.
密封;蓋章;決定;封上（信封）
例句：
Two thousand grey seal pups are born there every autumn.
那裡每年秋天有2,000頭灰色小海豹出生。

③ 海豹英語介紹

你好，很高興為你解答:
Seal is a general term for the suborder of pinnipeda. The seal is round and spindles. The body is covered with short hair, the back is blue gray, the abdomen is cream yellow, with blue black spots. The head is nearly round, the eyes are big and round, without external auricle, the kiss is short and wide, the palps of the upper lip are long and thick and hard, in the shape of beads.
詞彙
鰭足clasper; pteropodium
亞目suborder
紡錘形fusiform
藍灰色Russianblue; pewter
耳廓pinna; auricle; auricula
上唇upper lip; anocheilon; anochilos; supralabial
觸須cirrus; vibrissa; smeller; tentacle

④ 海豹的資料英文的，中文意思

Seal (mammal), large aquatic mammals distinguished by having all four legs fully adapted into flippers. There are three families of seals: the true seals, the eared seals, and the walrus. True seals lack external ears and have relatively short flippers that are nearly useless for walking on land. The eared seals, including the sea lions and fur seals, sport tiny external ears and can lift their bodies off the ground with their flippers. The stout-bodied walrus, with its wrinkled skin and unique tusks, is the only member of its family.

While the limbs of seals have developed into flippers, the tail has practically disappeared, making seals different from other marine mammals, such as whales, gongs, and manatees, which have lost their hind legs and use their powerful tails for swimming. In addition to their flippered limbs, seals have streamlined and flexible bodies, adaptations that make them excellent and efficient swimmers. Sea lions are the fastest seals and can swim at top speeds of nearly 40 km/h (25 mph). These seals are so flexible that they can nearly touch their rear flippers with their nose when bending backward.

Seals range in size from the male southern elephant seal, which reaches more than 3600 kg (8000 lb), and the male walrus, which grows more than 3.5 m (11.5 ft) in length and reaches weights of over 1700 kg (3700 lb), to the diminutive ringed seal—with alts averaging about 50 to 60 kg (about 110 to 130 lb) and a little more than 1 m (3 ft) in length.

Seals make and hear sounds underwater. Their whoops, screams, barks, moans, and wails are used in simple communication, such as mating calls and territorial defense. Some species, including bearded seals, Weddell seals, and walruses, sing complex songs that may last more than a minute. Inuit seal hunters listen for bearded seal songs by placing one ear against a kayak paddle handle while the blade is held underwater. It is still unknown if seals use reflected underwater sound waves, or echolocation, to navigate through the depths or to track prey.

⑤ 海豹用英語怎麼寫

海豹 [hǎi bào]

seal ；sea dog遠處，有幾個小黑點在海面上時隱時現，新認識的女釣友LINDA告訴我，那是海豹（SEAL），大的有上千磅。在三文魚洄遊的季節里，它們常常三五成群，游到河流的入海口饕餮美味，以補充身上的脂肪准備過冬。

⑥ 急求：關於保護海豹的英語作文！

1983年開始.海豹是海洋哺乳動物.在北半球,它們的肉是當地居民的食品,油可用作燃料,皮張被用來裁衣.它

在科學和醫學上也有重大價值.

但是,由於濫捕亂獵和海水污染,現在,海豹的種群數量在急劇下降.為了保護海豹這種珍稀動物,拯救海豹基

金會決定,每年的3月1日為國際海豹日,並每年都要為慶祝這個日子設計一幅宣傳畫.

1983年的宣傳畫的畫面是四隻斑海豹.之所以選畫斑海豹有兩個原因:在美國本土、阿拉斯加、加拿大海岸

以及歐洲和亞洲都能發現它的遺跡;人們常將漁業產量下降的罪名強加在它頭上,而實際上漁業產量下降的真正

原因是海水的污染、棲息環境的破壞和長年累月的過度捕魚.因此,斑海豹可以看作是全球受威脅的海豹種的代

表.

⑦ 海豹用英語怎麼造句

海豹
seal
{動} Phoca vitulina
sea dog
common seal

例句：
A seal rises from under the water.

一隻海豹從水下冒出來

希望對你有幫助 如有疑問請在線交談

⑧ 海豹的英文是什麼啊請回答

seal或者sea dog

⑨ 海豹的英文單詞怎麼寫

海豹 seal

~手工翻譯，尊重勞動，歡迎提問，感謝採納！~

⑩ 海豹 英語

海豹：seal

海豹經常跟海獅一起傻傻分不清。從分類學的角度，主要的區別是有沒有外耳廓。海獅是有外耳廓的，而海豹只有耳洞，沒有耳廓。另外，和海獅相比，海豹退化得更厲害，因此海獅是可以立起來行走的，而海豹只能趴在地上「蠕動」。平時我們在水族館里看到做頂球表演的一般都是海獅，而不是海豹。