求一下关于海豚的资料(英文)
答案:1 悬赏:40 手机版
解决时间 2021-04-06 04:55
- 提问者网友:辞取
- 2021-04-05 11:17
求一下关于海豚的资料(英文)
最佳答案
- 五星知识达人网友:大漠
- 2021-04-05 12:46
海豚 Delphinidae;dolphins 海豚属于哺乳纲、鲸目、齿鲸亚目,海豚科,通称海豚,共有近62种,分布于世界各大洋。体长1.2~4.2米,体重23~225千克。海豚一般嘴尖,上下颌各有约100颗尖细的牙齿,主要以小鱼、乌贼、虾、蟹为食。 海豚喜欢过“集体”生活,少则几头,多则几百头。海豚是一种本领超群、聪明伶俐的海中哺乳动物。经过训练,能打乒乓球、跳火圈等。除人以外,海豚的大脑是动物种最发达的。人的大脑占本人体重的百分之二点一,海豚的大脑占它体重的百分之一点七。海豚的大脑由完全隔开的两部分组成,当其中一部分工作时,另一部分充分休息,因此,可终生不眠。 海豚是靠回声定位来判断目标的远近、方向、位置、形状、甚至物体的性质。有人做试验,把海豚的眼睛蒙上,把水搅浑,它们也能迅速、准确的追到扔给它的食物。 海豚不但有惊人的听觉,还有高超的游泳和异乎寻常的潜水本领。据有人测验,海豚的潜水记录是300米深,而人不穿潜水衣,只能下潜20米。至于它的游泳速度,更是人类比不上的。 海豚的速度可达每小时40公里,相当于鱼雷快艇的中等速度。
翻译如下:
Porpoise Delphinidae; The dolphins porpoise belongs to the mammalia, the whale item, the toothed whales 亚目, the porpoise branch, is generally called the porpoise, the pooled nearly 62 kinds, distribute in world each big ocean. Body long 1.2 ~ 4.2 meters, body weight 23 ~ 225 kilograms. The porpoise common mouth point, above the lower jaw respectively has approximately 100 high-pitched and fine toeet, mainly take the small fish, the cuttlefish, the shrimp, the crab as the food. The porpoise likes " the collective " the life, are few then several heads, many pieces of several hundred heads. The porpoise is one kind of ability is outstanding, in the intelligent clever sea the mammal. Undergo the training, can play the ping pong, jump 火圈 and so on. Besides the person, porpoise's cerebrum is moves the species developed. Human's cerebrum accounts for personally body weight 2.1%, porpoise's cerebrum accounts for its body weight 1.7%. Porpoise's cerebrum by two parts which completely separates is composed, when one part of work, another part of full rests, therefore, but is life-long does not sleep. The porpoise is depends on 回声定位 judges the goal far and near, the direction, the position, the shape, even the object nature. Some people 做试验, hoodwink porpoise's eye, is muddy the atmospheric conditions just before a rain, they also can be rapid accurately, pursue to throw for its food. The porpoise not only has the astonishing sense of hearing, but also has the excellent swimming and the unusual diving ability. According to some people examines, porpoise's diving recording is 300 meters depth, but the person does not put on dives 水衣, only can dive 20 meters. As for its swimming speed, is the humanity does not compare. Porpoise's speed may amount to each hour 40 kilometers, is equal to the torpedo speed boat 中等速度.
翻译如下:
Porpoise Delphinidae; The dolphins porpoise belongs to the mammalia, the whale item, the toothed whales 亚目, the porpoise branch, is generally called the porpoise, the pooled nearly 62 kinds, distribute in world each big ocean. Body long 1.2 ~ 4.2 meters, body weight 23 ~ 225 kilograms. The porpoise common mouth point, above the lower jaw respectively has approximately 100 high-pitched and fine toeet, mainly take the small fish, the cuttlefish, the shrimp, the crab as the food. The porpoise likes " the collective " the life, are few then several heads, many pieces of several hundred heads. The porpoise is one kind of ability is outstanding, in the intelligent clever sea the mammal. Undergo the training, can play the ping pong, jump 火圈 and so on. Besides the person, porpoise's cerebrum is moves the species developed. Human's cerebrum accounts for personally body weight 2.1%, porpoise's cerebrum accounts for its body weight 1.7%. Porpoise's cerebrum by two parts which completely separates is composed, when one part of work, another part of full rests, therefore, but is life-long does not sleep. The porpoise is depends on 回声定位 judges the goal far and near, the direction, the position, the shape, even the object nature. Some people 做试验, hoodwink porpoise's eye, is muddy the atmospheric conditions just before a rain, they also can be rapid accurately, pursue to throw for its food. The porpoise not only has the astonishing sense of hearing, but also has the excellent swimming and the unusual diving ability. According to some people examines, porpoise's diving recording is 300 meters depth, but the person does not put on dives 水衣, only can dive 20 meters. As for its swimming speed, is the humanity does not compare. Porpoise's speed may amount to each hour 40 kilometers, is equal to the torpedo speed boat 中等速度.
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