페이지
7번째 페이지CC0 1.0 (퍼블릭 도메인)
Can you tell the difference between a mastodon and a mammoth?
11번째 페이지CC0 1.0 (퍼블릭 도메인)

12번째 페이지CC0 1.0 (퍼블릭 도메인)

13번째 페이지CC0 1.0 (퍼블릭 도메인)

15번째 페이지CC0 1.0 (퍼블릭 도메인)
For blood-sucking flies, the Far North is a paradise of food and breeding habitat, but for the animals and humans that reluctantly furnish the blood, the Far North is hell on Earth. The world’s largest populations of black flies and mosquitoes are found in northern regions of the globe.
17번째 페이지CC0 1.0 (퍼블릭 도메인)
Did you know that employees from across the National Park Service stepped up to help their fellow employees after hurricanes hit the US Virgin Islands and Puerto Rico? In September of 2017, Hurricane Irma, one of the strongest known hurricanes in the Atlantic, lashed the Caribbean and Florida. It…
20번째 페이지CC0 1.0 (퍼블릭 도메인)
Hunters distrusted the 1970s counts that said the Western Arctic Caribou Herd had crashed. A cooperative plan signed in 2003 uses ANILCA's provisions to bring hunters into management.
21번째 페이지CC0 1.0 (퍼블릭 도메인)

22번째 페이지CC0 1.0 (퍼블릭 도메인)















