Fishbones reveal our ancient transport secrets

Old fish bones and dead insects could be the key to the story of Ireland's transport system, 500 years before gridlock.

The fish bones, insect carcasses and dead plant material are wedged in the timbers of a medieval boat recovered from the river Boyne, near Drogheda.

The boat has now been lifted from the river-bed and the Department of Environment is looking for experts who will be able to unravel the story from minute remains left in the vessel.