Migration (Nature's Patterns series)

"Special animal journeys, called migration, have patterns."  A pattern means it's something that happens over and over again.  Different kinds of animals migrate differently.  Reindeer migrate south where it is warmer.  Wildebeests migrate to find water in the dry season.  Green sea turtles migrate to lay their eggs and have babies.  Whales and salmon and Monarch butterflies all migrate in the fall.