Peruvian conservationists are working to secure the survival of the huge manta ray. Local fishermen are playing a key role in the project. Swimming next to a manta ray is a great privilege because she is one of the giants of the ocean, the manta rays can measure eight meters and weigh 1400 kilograms, recently we learned that they are a family of sharks. We know very little about the manta ray, they are a mystery, because they can't live in an aquarium. The greatest danger to the manta ray is the fishing harpoon. But the manta rays are still a real mystery.

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