Watch full movie online. The otter is one of the UK's most charismatic yet enigmatic animals. Living not only along our rivers but also at the coast, otters have remarkable adaptations to a life both in and out of water. This documentary brings you the very latest scientific discoveries as well as a review of the turbulent history of the otter in the UK. It looks like the otter is making a steady comeback around the country but not everybody agrees this is good news.