For many of us, aquariums offer our very first glimpse of what life looks like under the sea. Our oceans and fresh water bodies are teeming with marine life—a dazzling array of animals, plants, and organisms that shape our world, and a visit to an aquarium can be the first step in teaching children how to care for their planet.

There’s no shortage of aquariums, though. According to the MarineBio Conservation Society, there are more than 200 marine aquariums and ocean life centers around the world.

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