David Hogg is leaving the Democratic National Committee’s leadership team, closing out a long and messy feud. Now, party chair Ken Martin and his allies hope voters will ...

David Hogg is leaving the Democratic National Committee’s leadership team, closing out a long and messy feud. Now, party chair Ken Martin and his allies hope voters will ...

A tiny creature with frilly gills, a polite smile and glowing green skin just gave scientists a major clue to solve one of biology’s biggest mysteries: limb regeneration.