A mysterious die-off of freshwater mussels has scientists scrambling to find a cause. Freshwater mussels clean water and provide habitat to countless other species.

Geoff Babb — a stroke survivor — found that most wheelchairs couldn't take him where he wanted to go. So, he invented a new way to hike with friends and family: an all-terrain wheelchair.

Buttigieg has criticized plans that make public college "free for even the kids of millionaires," opening up an argument in the Democratic primary campaign over the role of government.

From the politics to the presidents' counternarratives, there are a number of similarities between the events of December 1998 and the proceedings underway now against President Trump.