陆地动物

Proud frog pond owners can enjoy the melodious calls of frogs during the breeding season, seeing masses of wriggling hungry tadpoles in their pond and tiny newly emerged froglets taking their first hops to their new land-loving life. Building a frog pond and planting native vegetation is fun and provides a wonderful environment to enjoy native wildlife in your own backyard.

一个将自己的青蛙池塘维护得很好的主人，会很自豪的观察到从青蛙们开始鸣叫、交配，到它们所生的青蛙卵变成可爱得小蝌蚪，直到变态成幼蛙并发出第一声鸣叫走出池塘步入它们的陆地时代建造一个青蛙池塘并种植乡土植物是一件能给你不断带来惊喜的事情，让我们来一起感受能观察野生动物的小花园吧！

Its paramount importance is due to its having the greatest number and best-preserved fossil specimens of the lobe-finned fishes that gave rise to the first four-legged, air-breathing terrestrial vertebrates the tetrapods.

公园的重要性在于这里有大量的保存完好的鱼石螈的化石标本。鱼石螈是第一个进化为四条腿的，呼吸空气的陆地脊椎动物四足动物。

The earliest tetrapods were all carnivorous, so it is unlikely that, as adults, they fed much on land during the first phases of their evolution, because the only prey they would have found there were insects and other small arthropods.

最早的四足动物都是肉食性的，那时陆上的食物只有昆虫与小型节肢动物，所以成体不太可能在演化初期就以陆地做为主要的摄食处。

At up to 92 feet (28 meters) and 50 tons, these sauropods were much larger than any land animal alive today.

在以92英尺（ 28米）和50吨，这些蜥脚类恐龙，要远远大于任何陆地今天还活着动物。

It includes the most intact example of mountain rangelands in Asia with a relatively intact vertebrate fauna, and is one of the largest remaining terrestrial wilderness regions left in the world.

青藏高原有亚洲保存最完好的高山草地，以及相对完好的脊椎动物区系，而且它还是世界上现存的最大的陆地野生动物区域。

Adult pronghorns are among the world's fastest land animals, reaching speeds of about 53 miles (86 kilometers) an hour.

成年叉角羚是陆地上跑得最快的动物之一，速度可以达到53英里（86公里）每小时。

From their early evolution on land to their return to the sea, dolphins and other pinnipeds have survived in some of the harshest environments, yet still have managed to have fun.

从早期在陆地上的进化，再到回归海洋里，海豚和其它鳍足类动物在最恶劣的环境下艰难生存下来，但它们依然保持着乐观的天性。

But Demere, who didn't participate in the Nature paper, called the discovery exciting because it provides direct evidence for what early pinnipeds in the land-to-water transition looked like.

但是为参与发表在《自然》上论文的Demere称这次发现令人兴奋，因为它给早期鳍足动物在进行陆地-水过渡时期的样子提供了直接证据。

And while most environmentalists are in favor of using dispersants to protect animals onshore - the chemical is a standard tool for oil spill response - no one really knows what will happen when the dispersants are applied in the deep water.

虽然大部分的环保论者赞成在陆地上使用分散剂保护动物-化学剂是应对泄油的标准工具-没有人真正知道分散剂用在深水中会发生什么事情。

In the centre, the island of the City, resembling as to form an enormous tortoise, and throwing out its bridges with tiles for scales; like legs from beneath its gray shell of roofs.

龟一种陆地生乌龟，特别指属于龟鳖目的动物，一般具有厚重，梅花状的四肢和高耸的圆形甲壳

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。