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Social behavior in animals is important. it has many different benefits for each species, and positive impacts on ecosystems, in addition to increasing the chances of survival.

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Migratory birds fly in search of lands with warm climates, especially to the north, in order to breed and find food. While during the autumn they return in search of calm places where they can winter and face the cold winter days.

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An example is monarch butterflies. At the beginning of spring, they are ready to appear and migrate. They fly for about 1,000 miles (1,600 km) to lay their eggs only on milkweed plants, which they will eventually use as a food source for caterpillars.

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Animal migration is much more than just moving from one place to another. It is a perfectly organized collective journey, with a reward that requires planning, which is part of the instinct and genes of the species.

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Most species migrate during specific seasons, in search of food or water, to improve the climate where they live, or for mating reasons. Besides to providing food to other animals and regulating the number of species in ecosystems.