"I think night-flying moths and night-flying locusts could benefit from using a star compass similar to the one that the dung beetles are using, " she said.

BBC: Dung beetles guided by Milky Way

Finds of animal dung and dung beetles indicate that before the road was built, it was used as a livestock droveway, they said.

BBC: Iron Age road found in Shropshire by archaeologists

Burning yak dung in a wood-burning-style stove was the only form of heat at night, Ms Lloyd said.

BBC: Himalayan Rescue Association team