nautiloids

简明释义

英[ˈnɔːtɪlɔɪdz]美[ˈnɔːtəˌlɔɪdz]

n. 鹦鹉螺目动物（nautiloid 的复数）

英英释义

单词用法

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反义词

例句

1.There were large reef communities that harbored squidlike nautiloids.

海中还有大量像乌贼一样躲在礁石下软体动物。

2.Study of the attitudes of the fossil orthocone nautiloids indicate that the paleocurrents were from north to south during the deposition of the Sandaokan Formation.

直形壳鹦鹉螺类化石产出状态的研究等表明三道坎组古流向是自北而南的。

3.Study of the attitudes of the fossil orthocone nautiloids indicate that the paleocurrents were from north to south during the deposition of the Sandaokan Formation.

直形壳鹦鹉螺类化石产出状态的研究等表明三道坎组古流向是自北而南的。

4.In marine biology, nautiloids 鹦鹉螺类 are often used as indicators of healthy ocean ecosystems.

在海洋生物学中，鹦鹉螺类通常用作健康海洋生态系统的指示器。

5.The shell of modern nautiloids 鹦鹉螺类 is similar to those found in ancient marine environments.

现代鹦鹉螺类的外壳与古代海洋环境中发现的外壳相似。

6.The unique buoyancy mechanism of nautiloids 鹦鹉螺类 allows them to navigate through deep waters.

鹦鹉螺类独特的浮力机制使它们能够在深水中导航。

7.Scientists study nautiloids 鹦鹉螺类 to understand the evolution of cephalopods.

科学家研究鹦鹉螺类以了解头足类动物的进化。

8.The fossil record shows that nautiloids 鹦鹉螺类 were once much more diverse than they are today.

化石记录显示，鹦鹉螺类曾经比现在多样得多。

作文

The ocean is a vast and mysterious place, filled with countless creatures that have existed for millions of years. Among these fascinating beings are the nautiloids, a group of marine mollusks that have captured the interest of scientists and nature enthusiasts alike. The nautiloids are often referred to as 'living fossils' because they have changed very little over the course of their long evolutionary history. These creatures belong to the class Cephalopoda, which also includes squids, octopuses, and cuttlefish. Unlike their more modern relatives, the nautiloids possess a distinctive coiled shell that provides buoyancy and protection from predators.The anatomy of a nautiloid is particularly interesting. They have a soft body that is divided into several regions, with the most notable feature being their spiral-shaped shell. This shell is divided into chambers, which the nautiloids can fill with gas to control their buoyancy in the water. This ability allows them to navigate through different depths of the ocean with ease. The shell is not only a means of buoyancy but also serves as a protective barrier against potential threats.Historically, nautiloids have a rich fossil record dating back over 500 million years. They thrived during the Paleozoic era and were among the dominant marine predators of their time. The fossilized remains of nautiloids provide valuable insights into the evolutionary history of cephalopods and the changing environments of ancient oceans. Paleontologists study these fossils to understand how these organisms adapted to their surroundings and survived various extinction events.Today, there are only a few species of nautiloids left, primarily found in the warm waters of the Pacific and Indian Oceans. The most well-known species is the chambered nautilus, which has become a symbol of marine biodiversity. Unfortunately, due to habitat destruction and overfishing, nautiloids face numerous threats that could lead to their decline. Conservation efforts are essential to protect these unique creatures and their habitats, ensuring that future generations can appreciate their beauty and ecological significance.In addition to their biological importance, nautiloids have captured the imagination of artists and writers throughout history. Their intricate shells and mysterious lifestyles have inspired countless works of art and literature. From the famous novel 'Twenty Thousand Leagues Under the Sea' by Jules Verne to various scientific illustrations, nautiloids continue to be a source of fascination in popular culture.In conclusion, the nautiloids are remarkable creatures that represent a significant part of our planet's evolutionary history. Their unique adaptations and ancient lineage make them a subject of great interest in both scientific research and cultural expression. As we strive to protect our oceans and the diverse life they harbor, it is crucial to remember the importance of nautiloids and the role they play in maintaining the balance of marine ecosystems. By understanding and appreciating these living fossils, we can work towards a future that honors and preserves the wonders of our natural world.

海洋是一个广阔而神秘的地方，充满了无数已经存在了数百万年的生物。在这些迷人的生物中，有鹦鹉螺类，一种引起科学家和自然爱好者兴趣的海洋软体动物。鹦鹉螺类通常被称为“活化石”，因为它们在漫长的进化历史中几乎没有发生太大变化。这些生物属于头足纲，也包括鱿鱼、章鱼和墨鱼。与它们更现代的亲属不同，鹦鹉螺类拥有独特的卷曲外壳，它为它们提供了浮力和保护，以免遭受捕食者的攻击。鹦鹉螺类的解剖结构尤其有趣。它们的身体柔软，分为几个区域，最显著的特征是它们的螺旋状外壳。这个外壳分为多个腔室，鹦鹉螺类可以用气体填充这些腔室，以控制它们在水中的浮力。这种能力使它们能够轻松地在海洋的不同深度之间导航。外壳不仅是浮力的手段，还充当了对潜在威胁的保护屏障。历史上，鹦鹉螺类拥有丰富的化石记录，可以追溯到超过5亿年前。它们在古生代时期繁荣昌盛，是当时海洋中的主要捕食者之一。鹦鹉螺类的化石遗骸为我们提供了关于头足动物进化历史和古代海洋环境变化的宝贵见解。古生物学家研究这些化石，以了解这些生物如何适应周围环境并在各种灭绝事件中生存下来。如今，只有少数几种鹦鹉螺类仍然存在，主要分布在太平洋和印度洋的温暖水域。最著名的种类是有舱室的鹦鹉螺，它已成为海洋生物多样性的象征。不幸的是，由于栖息地破坏和过度捕捞，鹦鹉螺类面临着许多威胁，这可能导致它们数量的下降。保护工作对于保护这些独特生物及其栖息地至关重要，以确保未来的世代能够欣赏它们的美丽和生态重要性。除了生物学的重要性，鹦鹉螺类在历史上也吸引了艺术家和作家的想象力。它们错综复杂的外壳和神秘的生活方式激发了无数艺术和文学作品。从儒勒·凡尔纳的著名小说《海底两万里》到各种科学插图，鹦鹉螺类继续成为流行文化中令人着迷的主题。总之，鹦鹉螺类是非凡的生物，代表了我们星球进化历史的重要部分。它们独特的适应性和古老的血统使它们成为科学研究和文化表现的极大兴趣对象。随着我们努力保护海洋以及它们所栖息的多样生命，记住鹦鹉螺类的重要性及其在维持海洋生态系统平衡中的作用至关重要。通过理解和欣赏这些活化石，我们可以朝着一个尊重和保护我们自然世界奇观的未来努力。