An "Urban Jungle" natural play area trialled at a Glasgow school has seen a reduction in accidents, it has been claimed.
Trees, hills, boulders and tunnels were installed in the playground of Merrylee Primary in 2009.
The £65,000 scheme was funded by Glasgow City Council and Forestry Commission Scotland.
A report suggested a marked decrease in pupil segregation and an increase in physical activity.
Over a two week period in 2009 there were 76 accidents, one incident of bullying and 53 other incidents, which include pushing, hitting and slipping.
A follow-up study in 2011 recorded six accidents and two cases of bullying. Both cases of bullying occurred when the natural play space was closed.