Wild beaver swims in Welsh river in 'phenomenal' moment

A wild beaver has been filmed on a river in Wales in what has been described as a "hugely significant" sighting.

Beavers disappeared from Britain about 400 years ago after being hunted to extinction, but in the last two decades they have been making a comeback.

Naturalist and presenter Iolo Williams, who encountered the wild beaver on the River Dyfi near Machynlleth, said the clear and prolonged sighting was one of the "very, very best" things he had ever witnessed.

There are four managed enclosures that house beavers in Wales, and an unknown number living in the wild.

Iolo's River Valleys will be broadcast on BBC Two and BBC One Wales on 6 May at 19:00 and will also be available on BBC iPlayer.