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Travel with the Houston Zoo to Brazil's Pantanal, the largest inundated plain in the world and is a refuge for endangered species like the jaguar, hyacinth macaw, the giant anteater and the giant otter. The dry and wet seasons are a remarkable characteristic of this ecosystem and dictate the rhythm of the incredible wild life sheltered in its ecosystem. There are an estimated 3,500 species of plants, 124 species of mammals, 177 species of reptiles, 41 species of amphibians and at least 423 species of birds.