pedipalp

简明释义

英[ˈpedɪpælp]美[ˈpedɪˌpælp]

n. 须肢

复 数 p e d i p a l p s

英英释义

单词用法

同义词

反义词

例句

1.The spider uses its pedipalp to sense its environment.

蜘蛛用它的螯肢来感知环境。

2.During mating, male spiders transfer sperm using their pedipalps.

在交配过程中，雄性蜘蛛使用它们的螯肢转移精子。

3.The pedipalps of scorpions are often larger and more developed than those of spiders.

蝎子的螯肢通常比蜘蛛的更大且更发达。

4.Entomologists study the pedipalps to differentiate between species.

昆虫学家研究螯肢以区分不同物种。

5.In some arachnids, the pedipalps can resemble small legs.

在某些蛛形纲动物中，螯肢可能看起来像小腿。

作文

In the fascinating world of arachnids, one cannot overlook the significance of the term pedipalp (步足). These specialized appendages play a crucial role in the anatomy and behavior of spiders and scorpions. Unlike the eight legs that arachnids are famously known for, pedipalps serve distinct functions that contribute to their survival and reproductive success. Understanding the anatomy and purpose of these structures can deepen our appreciation for the complexity of these creatures. The pedipalp is typically located behind the mouthparts and resembles a smaller leg, but it is not used for locomotion. Instead, these appendages have evolved to perform various tasks depending on the species. For example, in male spiders, pedipalps are often modified into complex structures used during mating. They help transfer sperm to the female, ensuring successful reproduction. This adaptation highlights the importance of pedipalps in the life cycle of arachnids, as they directly influence genetic diversity and the continuation of species. In addition to their reproductive role, pedipalps also assist in hunting and feeding. Many spiders use their pedipalps to manipulate prey, holding onto it while they deliver venom through their fangs. The sensory capabilities of these appendages allow spiders to detect vibrations and chemical signals in their environment, enhancing their ability to locate food and avoid predators. This sensory function is particularly vital for nocturnal species that rely on subtle cues in low-light conditions. Moreover, the structure of pedipalps varies significantly among different arachnid species, showcasing the diversity of evolutionary adaptations. For instance, some scorpions possess large, claw-like pedipalps that they use to capture prey and defend themselves. In contrast, certain spider species have slender, elongated pedipalps that aid in intricate mating rituals. This variation illustrates how pedipalps are not only essential for survival but also reflect the ecological niche each species occupies. The study of pedipalps extends beyond mere anatomical interest; it offers insights into the evolutionary processes that shape biodiversity. Researchers examining the morphology and function of pedipalps can uncover clues about the adaptive strategies that have allowed arachnids to thrive in diverse habitats. As scientists continue to explore these fascinating appendages, they may discover new information about the evolutionary relationships between different arachnid groups. In conclusion, the term pedipalp (步足) encompasses much more than just a biological feature; it represents a key aspect of the survival and reproductive strategies of arachnids. By understanding the roles that pedipalps play in hunting, mating, and sensory perception, we can gain a deeper appreciation for the complexity of these remarkable creatures. As we continue to study the intricate details of arachnid anatomy, the significance of pedipalps will undoubtedly remain a focal point in the ongoing exploration of biodiversity.

在迷人的蛛形纲世界中，人们无法忽视术语pedipalp（步足）的重要性。这些专门的附肢在蜘蛛和蝎子的解剖学和行为中发挥着至关重要的作用。与著名的八条腿不同，pedipalps具有独特的功能，促进它们的生存和繁殖成功。理解这些结构的解剖学和目的可以加深我们对这些生物复杂性的欣赏。 pedipalp通常位于口部后面，类似于较小的腿，但并不用于运动。相反，这些附肢已经进化出多种任务，具体取决于物种。例如，在雄性蜘蛛中，pedipalps通常被改造成复杂的结构，用于交配。它们帮助将精子转移到雌性身上，确保成功繁殖。这种适应性突显了pedipalps在蛛形纲生物生命周期中的重要性，因为它们直接影响遗传多样性和物种的延续。 除了繁殖作用之外，pedipalps还帮助捕猎和进食。许多蜘蛛使用它们的pedipalps操控猎物，抓住猎物的同时通过毒牙注入毒液。这些附肢的感官能力使得蜘蛛能够探测周围环境中的振动和化学信号，从而增强它们寻找食物和避免捕食者的能力。这种感官功能对于依赖微弱线索的夜行物种尤为重要。 此外，pedipalps的结构在不同的蛛形纲物种之间差异显著，展示了进化适应的多样性。例如，一些蝎子拥有大型的爪状pedipalps，用于捕捉猎物和防御自己。相比之下，某些蜘蛛物种则拥有细长的pedipalps，有助于复杂的交配仪式。这种变化说明了pedipalps不仅对生存至关重要，还反映了每个物种所占据的生态位。 对pedipalps的研究超越了单纯的解剖学兴趣；它提供了关于塑造生物多样性的进化过程的见解。研究人员通过检查pedipalps的形态和功能，可以揭示出蛛形纲生物能够在多样栖息地中生存的适应策略的线索。随着科学家们继续探索这些迷人的附肢，他们可能会发现关于不同蛛形纲群体之间进化关系的新信息。 总之，术语pedipalp（步足）包含的不仅仅是生物特征；它代表了蛛形纲生物生存和繁殖策略的关键方面。通过理解pedipalps在捕猎、交配和感知中的作用，我们可以更深刻地欣赏这些非凡生物的复杂性。随着我们继续研究蛛形纲解剖的细节，pedipalps的重要性无疑将继续成为生物多样性探索中的一个重点。