PersonalMentionsFavoritesFriendsGroups Show: — Everything — Updates Friendships New Groups Group Memberships Group Updates Posts Comments Anders Götherström and Emrah Kırdök, The Conversation wrote a new post 9 months, 2 weeks ago Stone Age Teenagers' Chewing Gum Reveals Life 9,700 Years Ago in Fascinating Detail : ScienceAlert Some 9,700 years ago on an autumn day, a group of people were camping on the west coast of Scandinavia. They were hunter-gatherers that had been […]