ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photos by @florianschulzvisuals / When I look at this beautiful bald eagle, I see so much character and pride. No wonder it was made the national bird of the United States all the way back in 1782. It just has such a majestic look. I photographed this eagle in Alaska, where you find some of the largest eagles and the greatest abundance in the U.S. For a while, bald eagles were not doing so well and were on the brink of extinction. At the end of the 20th century, there were only 400 breeding pairs left in the lower 48. The widely used pesticide DDT accumulated in eagles, causing them to lay eggs with thinner shells that often broke, decimating the eagle population. Bald eagles received protection under the early version of the Endangered Species Act. The Environmental Protection Agency ordered a ban on the general use of DDT in 1972 and with several conservation efforts in parallel, bald eagles recovered until they were delisted in 2007, with around 10,000 breeding pairs. It is wonderful to see stories where we can turn things around! Please follow me @florianschulzvisuals for more stories about wildlife and conservation.」2月26日 0時44分