Video demonstration Level 1 Pushdoor and Lift from Innovation and social transmission in experimental micro-societies: exploring the scope of cumulative culture in young children Nicola McGuigan Emily Burdett Vanessa Burgess Lewis Dean Amanda Lucas Gillian Vale Andrew Whiten 10.6084/m9.figshare.5436751.v1 https://rs.figshare.com/articles/media/Video_demonstration_Level_1_Pushdoor_and_Lift_from_Innovation_and_social_transmission_in_experimental_micro-societies_exploring_the_scope_of_cumulative_culture_in_young_children/5436751 Video demonstration showing reward extraction from Level 1 Pushdoor and Lift 2017-09-25 11:00:46 innovation social learning culture cumulative culture cultural evolution tool-use