Seasonal migrations offer special opportunities to see wildlife herding and flocking, leaving, passing through, and arriving in our national parks.

The latest of a running series of reports outlining how climate change could reshape national parks portrays economic and environmental impacts lashing at Acadia National Park and its surrounding communities. While the report's authors hope to catch the attention of Congress, they acknowledge that a groundswell of public concern might be necessary to convince politicians to act.

In the wake of Oprah Winfrey's recent trek to Yosemite National Park, the question of how the National Park Service can build diversity in the park system again is spurring some debate. How can that mission be accomplished?