A great egret in Everglades National Park, Florida
© Troy Harrison/Getty Image
Stretching out in the Everglades. Everglades National Park
We're heading down to Florida today to celebrate the 75th year of Everglades National Park, the largest tropical wilderness in the United States. The park was established in 1947 to defend a fragile ecosystem, and covers about 20 percent of the entire Everglades wetland. But even with the park service's protection, the Everglades' features, primarily shallow freshwater pools, have suffered significantly due to human activity.
For example, the park is the most important North American breeding ground for wading birds, like the great egret seen in today's photo. Though great egrets are a robust and widespread species, breeding pairs in the park have declined to a tenth of what they once were. And great egrets are just one of 40 species native to Florida listed as endangered or threatened in the Everglades—so one can see why this unique corner of the country demands protection.
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