''Glad this was the only Bear I met in the park'' - Obama jokes with Bear Grylls

The White House's official Instagram account shared this selfie after the President met with survival expert  Bear Grylls during a three-day tour of Alaska to highlight the problem of climate change around the globe.

''Glad this was the only Bear I met in the park - bo,'' Obama joked in the picture posted to followers on social media, which has already garnered more than 18,000 'likes'.