President Obama stopped for a selfie with wilderness adventurer and television star Bear Grylls during his trip to Alaska on Tuesday. A photo posted to the White House Instagram account showed the pair smiling inside Kenai Fjords National Park with an alpine glacier and gray mountainside in the background. "Glad this was the only Bear I met in the park," read the caption, attributed to Obama. Obama is wrapping up his three-day trip highlighting climate change. He met Grylls for an upcoming episode of his wilderness survival skills show "Running Wild." Meanwhile, a White House petition calling for Obama to...