Go spelunking through cave systems, see bison grazing, and admire nature's beauty at this incredible South Dakota national park. Here's where to find it.

Valentine's Day has long been celebrated as a day of romance filled with red roses, heart-shaped candies and chocolate boxes.

Comparing pollen records from three lakes in different geological substrates highlights the influence of geology and climate on long-term vegetation development.

A new study reveals that peatlands—a vital carbon store that many people have never heard of—are dangerously under-protected, ...

Happy Statehood Day, Arizona. From Stevie Nicks and award-winning Mexican food to small towns and Camelback Mountain, here's ...