NPR's Ailsa Chang talks with Emily Kwong and Regina Barber of Short Wave about the fluid dynamics of crowds, an early fossil of a modern bird and new data on how people's moods change through the day.

The idea for the outdoor adventure class was born during the COVID-19 pandemic when Smith said she and her friends would ...

In the wake of REI closing its Experiences division, which offered classes and adventure travel, here are other Evergreen ...