cetaceans

简明释义

英[sɪˈteɪʃənz]美[sɪˈteɪʃənz]

n. 鲸目动物；鲸类物种（cetacean 的复数形式）

英英释义

单词用法

同义词

反义词

例句

1.Roughly speaking, these animals filled the ecological niches now occupied by toothed cetaceans such as dolphins and killer whales.

粗略地讲，这些动物在生态系统中所占的位置现在被海豚和杀手鲸一类的齿鲸类占据。

2.Once shorewards of the breakers cetaceans and odontocetes could interpret relative quite as deeper water, and swim shorewards to their sad suicides.

一旦捕捉到向岸碎浪的轻响，海豚和齿鲸可能会由于那种相对的安静而误以为是深水区，并岸边游去，导致令人痛惜的自杀。

3.The whale retained a tail and lacked a fluke, the major means of locomotion in modern cetaceans.

这种鲸保留了尾巴，没有现代水生鲸类动物用于行动的主要部位，尾片。

4.Missing until recently were fossils clearly intermediate, or transitional, between land mammals and cetaceans.

直到最近才发现的化石，显然是介于陆地哺乳动物和鲸类之间的过渡物种。

5.She concluded, "Essentially, the brains of primates and cetaceans arrived at the same cognitive space while evolving along quite different paths."

她总结说，“灵长类动物和鲸类的大脑的认知能力基本上处在同一是水平，只是进化方式截然不同。”

6.Many animals also died from run-ins with ships, and others were killed when sandbars-a favorite hangout for cetaceans-were blasted for easier navigation.

许多动物还死于与船只的撞击，还有其他的动物在沙洲被炸毁(为了更方便船只航行)时丧命。沙洲是鲸类动物最喜欢的栖息地。

7.The findings might someday help rescuers test whether the lost cetaceans might be deaf before releasing them back into the wild.

也许有一天这个研究能帮助研究人员发现为什么一些被救助的鲸豚类生物在被放归大海前就失聪的原因。

8.Cetaceans even surpass most primates in their use of sound.

鲸目动物的声音运用能力甚至超过大多数灵长类动物。

9.Other features, however, show experts that Pakicetus is a transitional form between a group of extinct flesh-eating mammals, the mesonychids, and cetaceans.

然而，专家认为巴基鲸是已经灭绝的食肉哺乳动物中爪类和鲸类之间的过渡物种。

10.Many marine biologists study cetaceans to understand their behavior and communication.

许多海洋生物学家研究鲸目动物以了解它们的行为和交流。

11.The study of cetaceans has revealed much about ocean ecosystems.

对鲸目动物的研究揭示了许多关于海洋生态系统的知识。

12.The documentary highlighted the threats faced by cetaceans in the wild.

这部纪录片强调了野生鲸目动物面临的威胁。

13.Tourists flock to see cetaceans during whale watching tours.

游客们在观鲸旅游期间蜂拥而至，想要看到鲸目动物。

14.Conservation efforts are crucial for protecting cetaceans from extinction.

保护工作对保护鲸目动物免于灭绝至关重要。

作文

The ocean is home to a diverse array of creatures, among which are the fascinating cetaceans (鲸目动物). These marine mammals include whales, dolphins, and porpoises, all of which share remarkable adaptations for life in the water. Understanding cetaceans is not only crucial for marine biology but also for conservation efforts aimed at protecting these incredible species and their habitats.One of the most striking features of cetaceans is their size. Some of the largest animals on Earth belong to this group, such as the blue whale, which can reach lengths of over 100 feet. This immense size allows them to travel long distances in search of food, primarily krill and small fish. However, the sheer size of cetaceans also makes them vulnerable to threats such as ship strikes and entanglement in fishing gear.In addition to their size, cetaceans are known for their intelligence and complex social structures. Dolphins, for example, are highly social animals that live in groups called pods. These pods exhibit intricate behaviors, including coordinated hunting strategies and vocal communication. The social nature of cetaceans raises interesting questions about their cognitive abilities and the emotional bonds they form with one another.Another remarkable aspect of cetaceans is their ability to communicate through sound. Many species utilize echolocation, a biological sonar system that allows them to navigate and hunt in dark or murky waters. This ability to produce and interpret sounds is vital for their survival and plays a significant role in their social interactions. Unfortunately, human activities, such as underwater noise pollution from ships and industrial activities, disrupt these communication channels, posing a threat to cetaceans.Conservation efforts aimed at protecting cetaceans are more important than ever. Many species are currently endangered due to factors like habitat loss, climate change, and hunting. Organizations around the world are working tirelessly to raise awareness about the plight of cetaceans and implement measures to safeguard their populations. This includes establishing marine protected areas, regulating fishing practices, and advocating for policies that reduce ocean noise pollution.In conclusion, cetaceans (鲸目动物) represent some of the most extraordinary life forms on our planet. Their unique adaptations, social structures, and communication methods highlight the complexity of marine ecosystems. As stewards of the ocean, it is our responsibility to ensure that these magnificent creatures continue to thrive for generations to come. By understanding and protecting cetaceans, we not only preserve biodiversity but also enrich our own lives through the awe and inspiration they provide.

海洋是多种生物的家园，其中包括迷人的cetaceans（鲸目动物）。这些海洋哺乳动物包括鲸鱼、海豚和鼠海豚，所有这些生物都为水中生活做出了显著的适应。理解cetaceans不仅对海洋生物学至关重要，而且对旨在保护这些令人难以置信的物种及其栖息地的保护工作也至关重要。cetaceans最引人注目的特征之一是它们的体型。一些地球上最大的动物属于这一群体，例如蓝鲸，可以达到超过100英尺的长度。这种巨大的体型使它们能够长途旅行以寻找食物，主要是磷虾和小鱼。然而，cetaceans的巨大体型也使它们容易受到威胁，例如船只撞击和被渔具缠住。除了体型，cetaceans还以其智力和复杂的社会结构而闻名。例如，海豚是高度社会化的动物，生活在称为群体的群体中。这些群体表现出复杂的行为，包括协调的捕猎策略和声音交流。cetaceans的社会性质引发了关于它们认知能力和彼此之间情感纽带的有趣问题。cetaceans的另一个显著方面是它们通过声音进行交流的能力。许多物种利用回声定位，这是一种生物声纳系统，使它们能够在黑暗或浑浊的水中导航和捕猎。这种产生和解释声音的能力对它们的生存至关重要，并在它们的社会互动中发挥着重要作用。不幸的是，人类活动，例如船只和工业活动造成的水下噪音污染，干扰了这些交流渠道，对cetaceans构成了威胁。旨在保护cetaceans的保护工作比以往任何时候都更加重要。由于栖息地丧失、气候变化和捕猎等因素，许多物种目前处于濒危状态。世界各地的组织正在不懈努力，提高人们对cetaceans困境的认识，并实施保护其种群的措施。这包括建立海洋保护区、规范捕鱼实践以及倡导减少海洋噪音污染的政策。总之，cetaceans（鲸目动物）代表了我们星球上最非凡的生命形式之一。它们独特的适应性、社会结构和交流方式突显了海洋生态系统的复杂性。作为海洋的管理者，我们有责任确保这些宏伟的生物能在未来几代人中继续繁荣。通过理解和保护cetaceans，我们不仅可以保护生物多样性，还可以通过它们所提供的敬畏和灵感来丰富自己的生活。