Synopsis
Swimming at speed, a school of anchoveta near the surface detect the vibrations of approaching predators. They close into a tight ball as a form of defence but will it be enough to ward off the approaching predators?
- Programme: The Blue Planet
- Episode: Open Ocean
- Channel: BBC Two
- Broadcast year: 2017
- Biology | Ecology | Ecosystems, extinction and gene pools | Predator and prey populations
Licence: ERA Licence required
UK only
Staff and students of licensed education establishments only
Cannot be adapted
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