"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

Later came intensive memorising of the star-compass, a circle of coral pebbles, each pebble a star, laid out in the sand round a palm-frond boat.

ECONOMIST: Mau Piailug