39 Season
543 Episode
Natural World - Season 12 Episode 10 Untangling the Knot (2020)
Follows Dutch, Canadian and British biologists as they chart the journeys of two groups of knots(shorebirds) from South America and South Africa.
- Country : United Kingdom, France
- Genre : Documentary
- Studio : BBC Two
- Director :
- Cast : David Attenborough, John Hannah, Juliet Stevenson