crabeater

简明释义

英[/ˈkreɪbiːtər/]美[/ˈkreɪbiːtər/]

食蟹动物

英英释义

单词用法

同义词

反义词

例句

1.The whales prefer weddell seals, which can be up to 11 feet long, rather than the more aggressive crabeater and leopard seals.

鲸鱼们似乎都喜欢吃韦德尔海豹，他们能有11英尺长，比一般的黑鳕鱼和海豹都更难捕获。

2.The whales prefer weddell seals, which can be up to 11 feet long, rather than the more aggressive crabeater and leopard seals.

鲸鱼们似乎都喜欢吃韦德尔海豹，他们能有11英尺长，比一般的黑鳕鱼和海豹都更难捕获。

3.Crabeater seals (Lobodon carcinophagus) are one of the most curious animals I was fortunate to work with.

食蟹海豹(Lobodoncarcinophagus)是我有幸遇到过的最奇怪的动物之一。

4.The crabeater seal is known for its unique feeding habits, primarily consuming krill.

蟹食性海豹以其独特的觅食习惯而闻名，主要以虾为食。

5.Researchers studied the population of crabeater seals in Antarctica to understand their ecological impact.

研究人员研究了南极地区的蟹食性海豹种群，以了解它们对生态的影响。

6.During our trip to the Antarctic, we were lucky enough to spot a crabeater seal lounging on an ice floe.

在我们前往南极的旅行中，我们很幸运地看到一只蟹食性海豹懒洋洋地躺在冰块上。

7.The diet of the crabeater seal mainly consists of Antarctic krill, making it crucial for the marine food web.

蟹食性海豹的饮食主要由南极虾组成，这使其在海洋食物链中至关重要。

8.A decline in krill populations could severely affect crabeater seals and other species that rely on them.

虾类种群的减少可能会严重影响依赖它们的蟹食性海豹和其他物种。

作文

The Antarctic is home to a variety of unique wildlife, one of the most fascinating being the crabeater. The crabeater seal, scientifically known as Lobodon carcinophaga, is not actually a crab eater, despite its name. Instead, it primarily feeds on krill, small shrimp-like crustaceans that are abundant in the Southern Ocean. This misconception about its diet arises from its name, which can be misleading. The crabeater is one of the most numerous seal species in the world, with an estimated population of over 7 million individuals. Its remarkable adaptability to the harsh Antarctic environment makes it a key player in the marine ecosystem. One of the most interesting aspects of the crabeater seal is its unique feeding strategy. During the summer months, these seals haul out on sea ice and use their specialized teeth to filter krill from the water. Their teeth are shaped like a sieve, allowing them to consume large quantities of krill while expelling the seawater. This adaptation is crucial for their survival in an environment where food can be scarce. The crabeater seal's physical appearance is also noteworthy. They have a slender body, long flippers, and a distinctive mottled coat that helps them blend into their icy surroundings. Adult crabeater seals can weigh between 200 to 300 kilograms and can grow up to 2.5 meters in length. Their coloration ranges from light brown to gray, with darker spots that provide camouflage against predators such as leopard seals and orcas. In terms of behavior, crabeater seals are known for their social nature. They often gather in large groups on the ice, especially during the breeding season. Mating occurs in the water, and after a gestation period of about 11 months, females give birth to a single pup. The pups are born with a thick layer of blubber, which is essential for insulation in the frigid Antarctic waters. Mothers are very protective of their young, and they nurse them for several months before weaning. Despite their abundance, crabeater seals face threats from climate change and human activities. The melting of sea ice due to rising temperatures impacts their habitat and food sources. Additionally, commercial fishing practices can deplete the krill populations that the crabeater relies on for sustenance. Conservation efforts are crucial to ensure the survival of this species, as they play an important role in maintaining the balance of the Antarctic marine ecosystem. In conclusion, the crabeater seal is a remarkable creature that exemplifies the wonders of evolution and adaptation. Its unique feeding habits, social behavior, and physical characteristics make it a subject of interest for researchers and wildlife enthusiasts alike. Protecting the crabeater and its habitat is essential not only for the species itself but also for the overall health of the Antarctic ecosystem. As we continue to learn more about these incredible animals, we must also take action to safeguard their future in a changing world.

南极是许多独特野生动物的家园，其中最迷人的之一就是爬蟹者。爬蟹者海豹，学名Lobodon carcinophaga，实际上并不吃蟹，尽管它的名字如此。相反，它主要以磷虾为食，这是一种在南冰洋中丰富的小型虾状甲壳类动物。对其饮食的这种误解源于它的名字，这可能会令人困惑。爬蟹者是世界上数量最多的海豹物种之一，估计种群超过700万只。它在严酷的南极环境中出色的适应能力使其成为海洋生态系统中的关键角色。 爬蟹者海豹最有趣的方面之一是其独特的觅食策略。在夏季，这些海豹会在海冰上聚集，并利用其特殊的牙齿从水中过滤磷虾。它们的牙齿形状像筛子，可以在排出海水的同时摄取大量磷虾。这种适应性对它们在食物稀缺的环境中生存至关重要。 爬蟹者海豹的外观也值得注意。它们体型纤细，长鳍肢，具有独特的斑驳皮毛，使它们能够融入冰冷的环境。成年爬蟹者海豹的体重在200到300公斤之间，长度可达2.5米。它们的颜色从浅棕色到灰色不等，带有较深的斑点，为捕食者如豹海豹和虎鲸提供伪装。 在行为方面，爬蟹者海豹以其社交性而闻名。它们常常在冰上聚集成群，尤其是在繁殖季节。交配发生在水中，经过大约11个月的孕期，雌性会产下一个幼崽。幼崽出生时有一层厚厚的脂肪，这是在寒冷的南极水域中保温所必需的。母亲非常保护她们的幼崽，并在哺乳几个月后才断奶。 尽管数量众多，爬蟹者海豹面临气候变化和人类活动带来的威胁。由于气温上升，海冰的融化影响了它们的栖息地和食物来源。此外，商业捕鱼活动可能耗尽爬蟹者依赖的磷虾种群。保护努力对确保这一物种的生存至关重要，因为它们在维持南极海洋生态系统的平衡中发挥着重要作用。 总之，爬蟹者海豹是一种非凡的生物，体现了进化和适应的奇迹。其独特的觅食习惯、社会行为和身体特征使其成为研究人员和野生动物爱好者感兴趣的对象。保护爬蟹者及其栖息地对该物种本身以及南极生态系统的整体健康至关重要。随着我们继续了解这些令人难以置信的动物，我们还必须采取行动，以保护它们在不断变化的世界中的未来。