stationary animals usually just filter feed, like sponges, for example, they take what they can from what passes by them through their pores through the water's currents.
Food, shelter (clothing), and work (carrying/moving loads).
Plants are autotrophic. They internally convert energy into food. The act of eating (moving food from the outside to the inside) is thus not neccessary.
prevent animals from moving around too much and keeping their surroundings warm
The population could be reduced where the migrants are moving from.
some animals have to hunt for their food and on the other hand they have to be eaten to make other animals food
they get there food by moving place to place to obtain their food.
animals safety
They use movement for get food to eat, to reproduce, and to run from being prey
The animals which is giving food to us. For example :cow, goat,etc.these animals are called food yielding animals.
they were nomads and hunted and gathered foods while moving without staying in one place at a time.
The food can be poisoned and it will kill the animals
Yes. All wild animals kill animals for their food.