Greenpeace install statues of seahorses on the Cleaver Bank, in the middle of the North Sea. The wooden seahorses, attached to heavy stone columns, are submerged to guard the nature reserve, which last week Greenpeace declared a marine reserve. The statues protect the vulnerable life on the seabed against destructive bottom trawling. According to the organisation, the Cleaver Bank has the highest biodiversity in the Dutch North Sea and has been seriously damaged by many years of intensive fishing.