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,海豚的大脑是动物中最发达的.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,
海豚更是人类比不上的.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.在鲸类王国里,要数海豚家族——海豚科的种类最多了,全世界已知共有30多种.有的种类虽名叫“鲸”,如虎鲸、伪虎鲸,其实也是海豚家族中的成员.
海豚是一类智力发达、非常聪明的动物,它们既不像森林中胆小的动物那样见人就逃,也不像深山老林中的猛兽那样遇人就张牙舞爪,海豚总是表现出十分温顺可亲的样子与人接近,比起狗和马来,它们对待人类有时甚至更为友好.
海豚救落水的人的故事,我们听了很多很多,海豚与人玩耍、嬉戏的报道也常有所闻,有的故事甚至成为轰动一时的新闻.经过学习训练的海豚,甚至能模仿某些人的话音.70年代,美国的三位科学家,让两头海豚学会了25个单词.新近,太平洋海洋基金会的欧文斯博士等4位科学家,对两头海豚进行训练,花了3年时间,教会它们700个英文词汇.不过有些科学家认为,不能把动物的“语言”或“方言”描绘得太离奇.
不过海豚确实具有与众不同的智力.它的大脑体积、质量也是动物界中数一数二的.目前,科学家对动物的智力有两种不同的见一种认为黑猩猩是一切动物中最进化、最能干的；另一种却认为海豚的智力和学习能力与猿差不多,甚至还要高一些.因而有人称海豚为“海中智臾”. The dolphin is a skill outstanding, the smart sea mammals. After training, can play table tennis, jump ring of fire, etc. Besides, beside those dolphins brain is the most developed in animals. The human brain accounted for my weight 2.1%, dolphins brain accounted for it one point seven percent of their weight. Dolphins brain by completely separated two parts, when one part is working, the other part of the rest adequately, therefore, may lifelong sleepless.
Dolphins are on echolocation to judge target distance, direction, position and shape, even objects of nature. Someone do test, the dolphin blindfold, muddy water, they also can rapid, accurate back to throw its food. Dolphins have not only astonishing hearing, and superb swimming and diving unusually skill. According to some tests, dolphin diving record is 300 meters deep, and people don't wear a diving suits, can descend 20 meters. As regards the swimming speed,
Dolphins is human't match. Dolphins speed per hour 40 kilometers, equivalent to torpedo boats of medium speed. In cetaceans kingdom to several dolphin family - the dolphin secco most species, the world known 30 many kinds. Some species though named "whales", such as the orcas, false killer whales, dolphins is actually in the family members.
Dolphins is a kind of intelligence is developed, very smart animals, they do not like forest timid animal that see people fled, also do not like the beast that meet mountains will show your teeth, dolphins always behaved very docile amiable people close to, like the appearance than dogs and Malay, they treated humans sometimes even more investor-friendly.
Dolphins save drowning person's story, we listened to many people, dolphins and play and playful report also often have to smell, some stories, even become a sensation of news. After the training of dolphins, even can imitate some people's voice. In the 1970s, the United States three scientists, let two dolphins learned 25 words. Recently, the Pacific Ocean foundation owens PHDS four scientists, training for two dolphins, spent three years, the church they 700 English vocabulary. But some scientists think, cannot animals "language" or "dialect" describe too extraordinary.
But dolphins actually have distinctive intelligence. Its brain size, quality also is one of the best in the animal world. At present, the intelligence of animals, scientists have two kinds of different opinions: one is that chimpanzees are all animals most evolution, and the most efficient, Another one was believed that dolphins intelligence and ability to learn and apes almost, or even higher. Thus one called for "sea dolphin ciic Yu".