amphistylic jaws

简明释义

两拉型颌;

英英释义

例句

1.The fossil discovered in the museum showcased a unique structure of amphistylic jaws, which are known for their distinctive jointing mechanism.

博物馆发现的化石展示了独特的双支撑颚结构，这种结构以其独特的关节机制而闻名。

2.Paleontologists often rely on the structure of amphistylic jaws to classify different species.

古生物学家通常依赖于双支撑颚的结构来分类不同的物种。

3.Researchers are studying the amphistylic jaws of ancient fish to understand their feeding habits.

研究人员正在研究古代鱼类的双支撑颚以了解它们的觅食习惯。

4.In her presentation, she explained how amphistylic jaws allow for greater flexibility in jaw movement.

在她的演讲中，她解释了双支撑颚如何允许下颌运动更大的灵活性。

5.The anatomy class focused on the function of amphistylic jaws in certain prehistoric species.

解剖学课程专注于某些史前物种中双支撑颚的功能。

作文

The study of vertebrate anatomy reveals fascinating adaptations that have evolved over millions of years. One particularly interesting feature is the structure known as amphistylic jaws, which can be found in certain primitive fish species. These jaws represent a significant evolutionary step in the development of feeding mechanisms among vertebrates. The term amphistylic jaws refers to a specific arrangement where the upper jaw is connected to both the skull and the lower jaw, allowing for more complex movements. This adaptation not only enhances the ability to grasp prey but also increases the efficiency of feeding strategies. In the context of evolutionary biology, the emergence of amphistylic jaws illustrates the transition from simple jaw structures to more advanced forms seen in later vertebrates. Early jawed fish, or gnathostomes, exhibited various jaw types, but the amphistylic jaws provided a unique advantage. By allowing for a dual connection, these jaws enabled a greater range of motion, facilitating the capture of diverse prey items. This adaptability likely played a crucial role in the survival and diversification of species during the Devonian period, often referred to as the 'Age of Fishes.' Understanding the mechanics of amphistylic jaws also sheds light on the ecological niches these early fish occupied. With improved feeding capabilities, species with this jaw structure could exploit different food sources, from small invertebrates to larger prey. This versatility may have contributed to their success in various aquatic environments, highlighting the importance of anatomical adaptations in evolutionary processes. In modern times, the legacy of amphistylic jaws can still be observed in some contemporary fish species. While many have evolved more specialized jaw structures, the fundamental principles of jaw mechanics remain rooted in these ancient adaptations. Studying the evolution of jaws not only enhances our understanding of fish biology but also provides insights into the broader narrative of vertebrate evolution. In conclusion, the concept of amphistylic jaws serves as a prime example of how anatomical features can significantly influence the evolutionary trajectory of a group of organisms. By examining these structures, researchers can uncover the complexities of evolutionary history and the intricate relationships between form, function, and survival. As we continue to explore the depths of vertebrate anatomy, the significance of adaptations like amphistylic jaws becomes increasingly clear, reminding us of the remarkable journey life has taken on our planet.

对脊椎动物解剖学的研究揭示了数百万年来进化出的迷人适应特征。其中一个特别有趣的特征是被称为amphistylic jaws的结构，这种结构可以在某些原始鱼类中找到。这些下颌代表了脊椎动物喂食机制发展中的一个重要进化步骤。术语amphistylic jaws指的是一种特定排列，其中上颌既与头骨连接，也与下颌相连，从而允许更复杂的运动。这种适应不仅增强了捕捉猎物的能力，还提高了喂食策略的效率。在进化生物学的背景下，amphistylic jaws的出现展示了从简单下颌结构到后期脊椎动物更先进形式的过渡。早期的有颌鱼类或称颌口类展示了各种下颌类型，但amphistylic jaws提供了独特的优势。通过允许双重连接，这些下颌使得运动范围更广，有利于捕捉多样的猎物。这种适应性可能在泥盆纪时期的生存和物种多样化中发挥了关键作用，这一时期通常被称为“鱼类的时代”。了解amphistylic jaws的机制也阐明了这些早期鱼类所占据的生态位。凭借改进的喂食能力，具有这种下颌结构的物种能够利用不同的食物来源，从小型无脊椎动物到较大的猎物。这种多样性可能促成了它们在各种水生环境中的成功，突显了解剖适应在进化过程中的重要性。在现代，amphistylic jaws的遗产仍然可以在一些当代鱼类中观察到。虽然许多鱼类已经进化出更专业化的下颌结构，但下颌机械的基本原理依然植根于这些古老的适应中。研究下颌的进化不仅增强了我们对鱼类生物学的理解，也提供了对脊椎动物进化更广泛叙述的见解。总之，amphistylic jaws的概念作为解剖特征如何显著影响一组生物的进化轨迹的典范。通过研究这些结构，研究人员可以揭示进化历史的复杂性以及形式、功能和生存之间的微妙关系。当我们继续探索脊椎动物解剖学的深度时，像amphistylic jaws这样的适应的重要性变得愈加明确，让我们想起地球上生命经历的非凡旅程。