海豚英文介绍92
发布网友
发布时间：2023-10-03 07:07
共2个回答
热心网友
时间：2024-12-04 22:14
Dolphins mainly live in warm tropical waters, but some, such as Lissodelphis spp., prefer cold waters. Usually live in shallow water or at least stay near the sea.
海豚主要栖息于热带的温暖海域，但也有一些比如露脊海豚（Lissodelphis spp.）更喜欢寒冷水域。通常生活在浅水或至少停留在海面附近。
Dolphins feed mainly on fish and squid. Like other toothed whales, dolphins rely on echolocation to hunt, and even use high-intensity sound to stun their prey.
海豚主要以鱼类和乌贼为食，像其他齿鲸一样，海豚依赖回声定位进行捕食，甚至可以用高声强击晕猎物。
Dolphins do not dive deep for as long as other whales,Rather, they like to swim fast and have juggling features.
海豚不像其他鲸类那样长时间深度潜水，而是喜欢快速游并带有杂耍特征。
Dolphin swimming is a unique way for dolphins to swim. One way to distinguish dolphins from other cetaceans is to jump out of the water at a small angle and then enter the water at a small angle.
豚泳是海豚科动物独有的游泳方式，整个身体以小角度跃离水面再以小角度入水，这是区别海豚和其他鲸目动物的方法之一。
扩展资料
海豚是小到中等尺寸的鲸类。体长约1.5~10米，体重50~7000公斤。雄性通常比雌性大。
多数海豚头部特征显著，由于透镜状脂肪的存在，喙前额头隆起，又称“额隆”，此类构造有助于聚集回声定位和觅食发出的声音。一些海豚虽有额隆，但喙部较短，隆起的前额仅勾画出方形外观。
海豚十分聪明伶俐，因为它有一个发达的大脑，而且沟回很多，沟回越多，智力便越发达。一头成年海豚的脑均重为1.6公斤，人的脑均重约为1.5公斤，而猩猩的脑均重尚不足0.25公斤。从绝对重量看，海豚为第一位，但从脑重与体重之比看，人脑占体重的2.1%，海豚1.17%，猩猩只占0.7%。
有些海豚是高度社会化物种，生活在大群体中（有时超过100,000头个体组成），呈现出许多有趣的集体行为。群内成员间有多种合作方式，一个例子是，集群的海豚有时会攻击鲨鱼，通过撞击杀死它们。成员间也会协作救助受伤或生病的个体。海豚群经常追随船只乘浪前行，时而杂技般的跃水腾空，景象蔚为壮观。
参资料来源：百度百科-海豚
热心网友
时间：2024-12-04 22:14
Dolphins live in groups,and speak to each other in their own language.That is a high sound and many singers love to learn this beautiful “song”.Their sound seems to have different functions,such as warning each other of danger or showing kindness to others. Dolphins also use sound to help them find their way around, and to help them find food. In this way they are like other animals,such as bees and birds.But dolphins are very different from almost all land animals. We now know they do not use their ears to receive their sounds,but the lower part of the mouth,called the jaw.Dolphins have bigger brain in proportion to their body size than humans have and they live a long life—at least 20 or 30 years.
Strangely,dolphins seem to like man,and for thousands of years there have been stories about the dolphin and its frindship with people.
there is a story about sailors in the 19th century.In a dangerous part of the sea off New Zealand,they learnt to look for a dolphin called Jack.From 1871 to 1903 Jack met every boat in the sea and showed it the way.Then in 1903 a passenger on a boat called The Penguin shot and wounded Jack.He recovered and for nine years more continued to guide all ships through the area except for The Penguin.
Today,some people continue to kill dolphins even the mother and babies，but many countries of the world now protect them and in these places it is against the law to kill them.Dolphins are very gentle and playful with each other and with humans,they are our lovely friends,let's own the same beautiful world with them forever!
