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Practice Listening: Select Missing Word
ID: #33473
Short
Animals
Transcript:
Land animals move easily through air, because air does not slow them down. Sea creatures, on the other hand, have to move through water, which is hundreds of times thicker than air. A sea animal has to push itself through water in order to move. See animals use many different ways to swim, creep or glide through water. Fish are able to swim by bending their bodies into waves. They have flattened fins and tails that push against the water, like, or blades converting their body waves into forward movement. The size of officious tail contributes to the swimming speed. Small tail fins are found in slow swimmers, like the eel. The medium sized tail of the base is linked with a medium to fast swimming speed. Long pointed tail lobes, like those on the marlin, are found only on fast.
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