用英语怎么介绍海豹

① the kal seal（ 贝加尔湖海豹 ）的英文简介，做演讲用的材料，好的话追加悬赏。

来源 网络

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;封条v.
密封;盖章;决定;封上（信封）
例句：
Two thousand grey seal pups are born there every autumn.
那里每年秋天有2,000头灰色小海豹出生。

③ 海豹英语介绍

你好，很高兴为你解答:
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.
词汇
鳍足clasper; pteropodium
亚目suborder
纺锤形fusiform
蓝灰色Russianblue; pewter
耳廓pinna; auricle; auricula
上唇upper lip; anocheilon; anochilos; supralabial
触须cirrus; vibrissa; smeller; tentacle

④ 海豹的资料英文的，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 海豹用英语怎么写

海豹 [hǎi bào]

seal ；sea dog远处，有几个小黑点在海面上时隐时现，新认识的女钓友LINDA告诉我，那是海豹（SEAL），大的有上千磅。在三文鱼洄游的季节里，它们常常三五成群，游到河流的入海口饕餮美味，以补充身上的脂肪准备过冬。

⑥ 急求：关于保护海豹的英语作文！

1983年开始.海豹是海洋哺乳动物.在北半球,它们的肉是当地居民的食品,油可用作燃料,皮张被用来裁衣.它

在科学和医学上也有重大价值.

但是,由于滥捕乱猎和海水污染,现在,海豹的种群数量在急剧下降.为了保护海豹这种珍稀动物,拯救海豹基

金会决定,每年的3月1日为国际海豹日,并每年都要为庆祝这个日子设计一幅宣传画.

1983年的宣传画的画面是四只斑海豹.之所以选画斑海豹有两个原因:在美国本土、阿拉斯加、加拿大海岸

以及欧洲和亚洲都能发现它的遗迹;人们常将渔业产量下降的罪名强加在它头上,而实际上渔业产量下降的真正

原因是海水的污染、栖息环境的破坏和长年累月的过度捕鱼.因此,斑海豹可以看作是全球受威胁的海豹种的代

表.

⑦ 海豹用英语怎么造句

海豹
seal
{动} Phoca vitulina
sea dog
common seal

例句：
A seal rises from under the water.

一只海豹从水下冒出来

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⑧ 海豹的英文是什么啊请回答

seal或者sea dog

⑨ 海豹的英文单词怎么写

海豹 seal

~手工翻译，尊重劳动，欢迎提问，感谢采纳！~

⑩ 海豹 英语

海豹：seal

海豹经常跟海狮一起傻傻分不清。从分类学的角度，主要的区别是有没有外耳廓。海狮是有外耳廓的，而海豹只有耳洞，没有耳廓。另外，和海狮相比，海豹退化得更厉害，因此海狮是可以立起来行走的，而海豹只能趴在地上“蠕动”。平时我们在水族馆里看到做顶球表演的一般都是海狮，而不是海豹。