A network of hedgehog tunnels and holes in south-west London is playing a part in helping one of Britain's most vulnerable animals survive in the capital.

Alice Mallorie has spent years adapting her garden in Barnes to make it more accessible to hedgehogs, and these routes form part of a wider community initiative which has become known locally as the hedgehog highway.

Openings have been created in fences and walls, including a passage drilled through a thick Victorian boundary, allowing the animals to move freely between neighbouring spaces.