stegosauruses

简明释义

英[ˌsteɡəˈsɔːrəs]美[ˌsteɡəˈsɔːrəs]

n. 剑龙

复 数 s t e g o s a u r i

英英释义

单词用法

同义词

反义词

例句

1.In the Jurassic period, stegosauruses roamed the earth, munching on low-lying plants.

在侏罗纪时期，剑龙在地球上游荡，啃食低矮的植物。

2.Paleontologists discovered fossils of stegosauruses in North America.

古生物学家在北美发现了剑龙的化石。

3.Children love to learn about dinosaurs, especially stegosauruses with their unique plates.

孩子们喜欢学习恐龙，尤其是那些独特背板的剑龙。

4.The distinctive features of stegosauruses include their spiked tails and plated backs.

剑龙的独特特征包括尖刺的尾巴和布满背部的板块。

5.The museum has a fantastic exhibit featuring life-sized models of stegosauruses.

博物馆有一个精彩的展览，展示了真实大小的剑龙模型。

作文

The world of dinosaurs has always fascinated both children and adults alike. Among the many species that roamed the Earth millions of years ago, the stegosauruses stand out due to their unique appearance and intriguing characteristics. Known for their distinctive double row of large bony plates along their back and spiked tail, stegosauruses were herbivorous dinosaurs that lived during the late Jurassic period, approximately 150 million years ago. Their name, which means 'roofed lizard', is derived from the Greek words 'stegos' and 'sauros'.One of the most striking features of the stegosauruses is their size. An adult could grow up to 30 feet long and weigh around 5 tons. Despite their massive size, they had a relatively small brain, weighing only about the same as a walnut. This peculiar brain-to-body ratio has led scientists to speculate about their intelligence and behavior. Many believe that stegosauruses relied heavily on their physical attributes for survival rather than cognitive abilities.The bony plates on their backs served multiple purposes. Some theories suggest that these plates were used for thermoregulation, helping the stegosauruses regulate their body temperature. Others propose that the plates played a role in mating displays or were used to intimidate predators. The spikes on their tails, known as the 'thagomizer', were likely used as a defense mechanism against carnivorous dinosaurs, providing a formidable weapon when threatened.Diet-wise, stegosauruses were primarily herbivores, feeding on low-lying plants, ferns, and shrubs. Their teeth were adapted for grinding tough vegetation, indicating that they spent a significant amount of time foraging for food. The structure of their jaws allowed them to consume large quantities of plant material, which was essential for their survival in the lush, prehistoric landscapes they inhabited.Interestingly, the fossil record shows that stegosauruses were not solitary creatures. Evidence suggests that they may have traveled in groups, providing safety in numbers against predators. This social behavior could have also played a role in their breeding habits, as being part of a herd would allow for more opportunities to find mates and raise young.The discovery of stegosauruses fossils has provided paleontologists with valuable insights into the life and environment of these fascinating creatures. Sites where their bones have been found often reveal a wealth of information about the ecosystems they lived in, including the types of plants available and the other animals that cohabited the area. Such discoveries continue to shape our understanding of the Jurassic period and the evolutionary history of dinosaurs.In popular culture, stegosauruses have become iconic representations of dinosaurs, often featured in movies, books, and toys. Their unique appearance and gentle demeanor make them a favorite among children, and they are frequently depicted as friendly giants rather than fearsome predators. This perception contributes to a broader interest in paleontology and the study of prehistoric life, inspiring future generations to explore the mysteries of our planet's history.In conclusion, the stegosauruses is not just a remarkable dinosaur due to its physical features but also for the insights it provides into the past. By studying these ancient creatures, we gain a better understanding of the evolutionary processes that shaped life on Earth. The enduring fascination with stegosauruses serves as a reminder of the rich tapestry of life that once existed and continues to inspire curiosity and wonder about our planet's prehistoric heritage.

恐龙的世界一直以来都吸引着孩子和成年人。在数百万年前，曾在地球上漫游的众多物种中，剑龙因其独特的外观和迷人的特征而脱颖而出。剑龙以其背部两排大型骨板和尖刺尾巴而闻名，是一种生活在晚侏罗世时期的食草恐龙，约在1.5亿年前。它的名字意为“有屋顶的蜥蜴”，源自希腊语中的“stegos”和“sauros”。剑龙最显著的特征之一是它们的体型。成年个体可以长达30英尺，重约5吨。尽管体型庞大，但它们的大脑相对较小，重约与核桃相同。这种奇特的脑体比率使科学家们对它们的智力和行为产生了猜测。许多人认为，剑龙在生存中更多依赖于其身体特征，而非认知能力。背部的骨板具有多种用途。一些理论认为，这些骨板用于热调节，帮助剑龙调节体温。另一些理论则提出，这些骨板可能在交配展示中起到作用，或用于威吓捕食者。它们尾部的尖刺，称为“thagomizer”，可能作为防御机制对抗肉食性恐龙，在受到威胁时提供强大的武器。在饮食方面，剑龙主要是食草动物，吃低矮的植物、蕨类和灌木。它们的牙齿适合研磨坚韧的植物，表明它们花费大量时间寻找食物。它们下颌的结构使它们能够消耗大量植物材料，这是在茂盛的史前景观中生存所必需的。有趣的是，化石记录显示，剑龙并不是孤独的生物。证据表明，它们可能成群结队地移动，以便在捕食者面前提供安全感。这种社会行为也可能在繁殖习惯中发挥了作用，因为作为一个群体的一部分可以提供更多找到伴侣和抚养幼崽的机会。对剑龙化石的发现为古生物学家提供了有关这些迷人生物的生活和环境的宝贵见解。发现它们骨骼的地点通常揭示了丰富的信息，关于它们所生活的生态系统，包括可用的植物类型和其他共同栖息的动物。这些发现继续塑造我们对侏罗纪时期和恐龙进化历史的理解。在流行文化中，剑龙已成为恐龙的标志性代表，常常出现在电影、书籍和玩具中。它们独特的外观和温和的性格使它们成为孩子们的最爱，常常被描绘成友好的巨人，而不是可怕的捕食者。这种看法有助于更广泛地激发对古生物学和史前生命研究的兴趣，激励未来几代人探索我们星球历史的奥秘。总之，剑龙不仅因其身体特征而成为一种非凡的恐龙，还因其为过去提供的洞察而值得关注。通过研究这些古老生物，我们对塑造地球生命的进化过程有了更好的理解。对剑龙的持久迷恋提醒我们曾经存在的丰富生命织锦，并继续激发对我们星球史前遗产的好奇和惊叹。