鲸鱼的英文介绍

鲸鱼的英文介绍
鲸鱼的英文介绍

鲸鱼的英文介绍
Any of various aquatic,chiefly marine mammals of the order Cetacea,including the whales,dolphins,and porpoises,characterized by a nearly hairless body,anterior limbs modified into broad flippers,vestigial posterior limbs,and a flat,notched tail.
鲸目动物：鲸目动物中的一种水生动物,主要是海生哺乳动物,包括鲸、海豚和鼠海豚,特征为身体几乎无毛、前肢变成宽大的鳍、后肢退化及尾扁平而分叉

http://www.britannica.com/eb/article-9076726/whale

Humpback Whale
Length and Weight:

The newborn calf measures 4.5-5 meters. The adult measures 11-16 meters. They weigh at least 35 tons.
Physical Description:

The head of ...

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Humpback Whale
Length and Weight:

The newborn calf measures 4.5-5 meters. The adult measures 11-16 meters. They weigh at least 35 tons.
Physical Description:

The head of the humpback is broad and rounded when viewed from above, but flat from its blowholes to beak with numerous knobs. They have very long flippers, almost one third of their body length. They are white and mottled, and have knobs at the edge. There are 14-35 ventral grooves extending from the lower jaw to their stomach. Humpbacks have no fin, only a small irregular knob located two third along the back. Their fluke is wide and the shape looks like a butterfly with incised edge. The humpback lifts up the fluke before diving.
Behavior:

The humpback usually appears alone, sometime 2-3 individual in a small group. But in the breeding season, they may gather 12-15 individuals. Humpback whales feed on crustaceans, fishes and planktons. Their blow can reach 2.5-3 meters, and higher and more frequent after long diving. Humpbacks are the most vigorous among the baleens. They like row the body lifting one flipper high into the air, or lift the fluke up. They also jump out of the water often, creating astonishing images to people.
Identifying Tips:

It is difficult to identify humpback whales from other baleen whales from distance. You can pay attention to the location and shape of their fin, or see if they lift high the fluke before diving. If you have the chance to get close to these giants, you can identify them from numerous knobs on their beak and flippers. Like humpbacks, sperm whales also have a hump on the back before diving, but the edge of the humpback's fluke is serrated and the underside is mottled with white yet the edge of the sperm whale's is smooth and whole black.

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