这种夜行性动物白天时隐藏在水底洞穴里，晚上才出来冒险，它们以小鱼、乌贼和章鱼为食。
The nocturnal animals hide in underwater caves by day, then venture out at night, feeding on small fish, squid, and octopus.
超级鳄有可能因为太重而不善于奔跑，因而它可能会潜伏在水底，掠食甚至更大的动物。
And SuperCroc, which was probably too heavy to run, and which probably lurked at the water's edge, could have taken even bigger ones.
这种夜行性动物白天时隐藏在水底洞穴里，晚上才出来冒险，它们以小鱼、乌贼和章鱼为食。
The nocturnal animals hide in underwater caves by day, then venture out at night, feeding on small fish, squid , and octopus.
我就在想水底的小动物能活下来吗？
这种夜行性动物白天时隐藏在水底洞穴里，晚上才出来冒险，它们以小鱼、乌贼和章鱼为食。
The nocturnal animals hide in underwater caves by day, then venture out at night, feeding on small fish, squid, and octopus .
概括了底栖动物的概念，列举了淡水底栖动物的主要类群；综述了近年来我国利用底栖动物评价和监测水质的主要工作。
The concept and main groups of zoobenthos was summarized, and studies of assessment and monitoring of water quality by using benthic animal in China were reviewed.
蚌科是淡水底栖动物的重要类群，由于淡水蚌类存在趋同现象，致使我国蚌科在分类上仍然存在许多争议。
Unionidae is an important group of freshwater benthos. Due to the convergence phenomenon of freshwater mussels, there is still much controversy in the classification of Chinese Unionidae.
大部分的两栖动物住在靠近水边或水底。
大部分的两栖动物住在靠近水边或水底。
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