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In Rivers, Lakes, and Oceans, follow the nonstop journey of water as it rushes along in rivers and streams, travels beneath the ground, rests in lakes, crashes against coastlines, and flows into the ocean.

Migration is one of the most fascinating and dramatic of all animal behaviors. These marathon journeys animals take are filled with great tests of physical strength and endurance - as well as danger and sometimes death. This title helps to learn why animals are compelled to migrate and the various patterns and cycles of their migrations.