Beavers build first dam in Exmoor in more than 400 years

National Trust footage shows animals collecting vegetation to create instant wetland'

Beavers have built their first dam in Exmoor in more than 400 years after river restoration work by the National Trust.

The semi-aquatic rodents, which constructed the dam at the Holnicote estate near Minehead, are the first to be released into the wild by the trust in its 125-year history.