成人论坛

Sardine run

Like an immense living oil slick just off South Africa's eastern sea board, millions of sardines gather on an epic marine migration. They feast on a seasonal plankton bloom. Following them closely is a host of predators - sharks, dolphins and gannets. The sharks and dolphins drive the sardines against the shore and towards the surface in a trap from which they can rarely escape.

24 September 2009

4 minutes

This clip is from

The Blue Planet—Introduction

African wildlife—成人论坛 Wildlife Finder

Discover more about Africa鈥檚 most surprising and also best-loved wildlife.
成人论坛 Nature

Be captivated, informed and inspired by the world's wildlife.
David Attenborough's favourites

David Attenborough's selection of memorable film moments demonstrating the leaps in filmmaking technology in the past 30 years and showcasing the diversity of life on Earth.

Killer whale hunt

Duration: 06:38
Blue whale breach

Duration: 01:38

A Cruel Lesson—Coasts

Duration: 05:03
Small beginnings—Seasonal Seas

Duration: 01:07
Deep seabed—The Deep

Duration: 02:11
Dumbo octopus—The Deep

Duration: 00:50