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The Earth’s Littlest Creatures That Play a Big Role in the Environment

Reader's Digest Logo By Johanna Read of Reader's Digest | Slide 1 of 13: Humans often forget just how interconnected the world is—and just how much we rely on the work of animals to keep it healthy and buzzing along. As the saying goes, out of sight, out of mind. Still, when we do think about it, it’s pretty easy to see the effects that certain larger animals have on the environment. When beavers build dams, for example, they change the flow of rivers. But even the smallest creatures can make big changes and contributions, and without them, the world would be a very different place. Here are some of tiniest ones on the planet and the essential roles they play. When you're up to speed, check out some of the biggest living animals in the world.

Small wonders

Humans often forget just how interconnected the world is—and just how much we rely on the work of animals to keep it healthy and buzzing along. As the saying goes, out of sight, out of mind. Still, when we do think about it, it’s pretty easy to see the effects that certain larger animals have on the environment. When beavers build dams, for example, they change the flow of rivers. But even the smallest creatures can make big changes and contributions, and without them, the world would be a very different place. Here are some of tiniest ones on the planet and the essential roles they play. When you're up to speed, check out some of the biggest living animals in the world.

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