1 Tymor
2 Pennod
Swarm: Nature's Incredible Invasions - Season 1 Episode 1
Real-life footage from camcorders and mobile phones captures the amazing impact they can have.
- Blwyddyn: 2009
- Gwlad: United Kingdom
- Genre: Documentary
- Stiwdio: BBC One
- Allweddair: nature documentary
- Cyfarwyddwr:
- Cast: David Tennant