‘The knowledge of our elders’: India’s living root bridges submitted to Unesco

Meghalaya state hopes for world heritage status for unique bridges, which can take decades to create

India's famous living bridges - the roots of trees coaxed and stretched into the form of a suspension bridge over a river - have been submitted to Unesco's tentative list for the coveted world heritage site status.

The mountainous state of Meghalaya in the north-east has more than 100 such bridges in 70 villages, unique structures created by a combination of nature and human ingenuity.