sometimes referred to as a “puffing pig” due to the noise they make when they breathe, porpoises differ from dolphins mainly by their shape and the smaller size of their body and dorsal fin.

Planning permission is generally needed for any development. This means building, engineering, mining or other activity that makes changes to the use of land, or changes to existing buildings. There are exceptions that do not count as development, such as maintenance, changes to the interior of a building, agriculture, forestry and changes to gardens.