monotremes

简明释义

英[ˈmɒnətriːmz]美[ˈmɑnətrims]

n. 单孔目动物（monotreme 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The echidna is such a unique animal that it is classified in a special class of mammals known as monotremes, which it shares only with the platypus.

因针鼹鼠之独特，被定类为特殊的哺乳动物，属单孔类动物。单孔类动物只有针鼹鼠和鸭嘴兽。

2.Today, this bizarre but fascinating creature is known as the platypus, one of only five extant monotremes (egg-laying mammals).

如今，这种怪诞但迷人的生物被命名为鸭嘴兽，现存的五种卵生哺乳动物之一。

3.The world's only monotremes are the platypus and the echidna.

鸭嘴兽和针鼹鼠是世界上唯一的单孔类动物。

4.The echidna is such a unique animal that it is classified in a special class of mammals known as monotremes, which it shares only with the platypus.

因针鼹鼠之独特，被定类为特殊的哺乳动物，属单孔类动物。单孔类动物只有针鼹鼠和鸭嘴兽。

5.The study of monotremes 单孔类动物 provides valuable insights into the evolution of mammals.

对monotremes 单孔类动物的研究为哺乳动物的进化提供了宝贵的见解。

6.Conservation efforts for monotremes 单孔类动物 are crucial due to their limited populations.

由于其数量有限，对monotremes 单孔类动物的保护工作至关重要。

7.Researchers are fascinated by the reproductive habits of monotremes 单孔类动物, as they lay eggs unlike most mammals.

研究人员对monotremes 单孔类动物的繁殖习性非常着迷，因为它们与大多数哺乳动物不同，产卵。

8.The echidna is another example of a monotreme 单孔类动物 that has adapted well to its environment.

针鼹是另一种适应环境良好的monotreme 单孔类动物。

9.In Australia, you can find unique animals like the platypus, which is one of the few monotremes 单孔类动物 in existence.

在澳大利亚，你可以找到像鸭嘴兽这样的独特动物，它是现存少数的monotremes 单孔类动物之一。

作文

Monotremes are a unique group of egg-laying mammals that stand out in the animal kingdom due to their distinctive reproductive methods. This fascinating category of mammals includes species such as the platypus and the echidna. Unlike most mammals that give birth to live young, monotremes (单孔目动物) lay eggs, which is a trait more commonly associated with reptiles and birds. This characteristic makes them one of the most primitive forms of mammals still existing today.The evolution of monotremes (单孔目动物) is particularly interesting, as they represent a link between reptiles and mammals. Fossil records suggest that these creatures have been around for over 200 million years, and they provide valuable insights into the evolutionary history of mammals. The fact that they lay eggs indicates that their ancestors were likely more reptilian in nature, and this has led scientists to study them closely to understand mammalian evolution better.One of the most remarkable features of monotremes (单孔目动物) is their ability to produce milk for their young, despite not having nipples. Instead, female monotremes (单孔目动物) secrete milk through openings in their skin, allowing their offspring to lap it up. This method of feeding is quite unusual compared to other mammals and highlights the unique adaptations that these creatures have developed over time.In terms of habitat, monotremes (单孔目动物) are primarily found in Australia and New Guinea. The platypus, for example, is native to eastern Australia and is often found in freshwater environments such as rivers and lakes. Echidnas, on the other hand, can be found in various habitats ranging from forests to deserts. Their adaptability to different environments showcases their resilience and evolutionary success.Despite their unique characteristics, monotremes (单孔目动物) face several threats in the modern world. Habitat destruction, climate change, and introduced predators pose significant risks to their populations. Conservation efforts are crucial to ensure the survival of these remarkable creatures, as they play an important role in their ecosystems. By studying monotremes (单孔目动物), scientists can also gain insights into broader ecological issues and the impact of environmental changes on wildlife.In conclusion, monotremes (单孔目动物) are a fascinating group of animals that offer a glimpse into the early stages of mammalian evolution. Their unique reproductive methods, adaptations, and ecological significance make them an important subject of study in the field of biology. Protecting these extraordinary creatures is essential, not only for their survival but also for the understanding of our planet's biodiversity. As we continue to learn more about monotremes (单孔目动物), we realize that preserving their habitats and ensuring their safety is vital for maintaining the delicate balance of our ecosystems.