Listen up: deafness and personal audio players

You’ve got to admire their skill. Every day they literally put their tiny bodies on the line, defying the murderous monsters that are never far away.

The mice that live in the London Underground railway are a nerveless bunch. Witness how they sometimes leave it to the last possible seconds before scuttling to safety from unforgiving tonnes of rolling stock. This display is particularly impressive, because it’s questionable just how well they can hear the oncoming danger, given their lifetime exposure to noise from the carriages. Perhaps they …