Arizona keeps its best secrets tucked away in the mountains where most people forget to look. Tonto Natural Bridge State Park in Pine is proof that sometimes the most magical places are hiding in ...

This is an outdoor museum that takes the concept of “larger than life” and runs with it all the way back to the Mesozoic Era. The whole experience is built around a walking trail that meanders through ...

In 1991, botanists Calaway Dodson and Alwyn Gentry advanced a striking proposition. Surveying a rapidly deforested ridge in western Ecuador, they suggested that dozens of plant species known only from ...

Scientists are learning to dive beneath polar ice to study the flora and fauna below. The Finnish Scientific Diving Academy has designed a program in northern Finland for participants to ...

As Donald Trump goes after Harvard, one of the university’s most famous alums is back in the limelight with a new documentary. Henry David Thoreau, which premieres March 30 on PBS, celebrates ...