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Hauling in sardines at the beach near Durban, South Africa

Rogan Ward / Reuters

Fishermen remove sardine from their nets during the annual sardine run at Warner Beach some 40 km (25 miles) north of Durban, June 28, 2011. The east coast of South Africa sees an annual migration of sardines shoaling up the coastal line.

Rogan Ward / Reuters

Fishermen remove sardine from their nets during the annual sardine run.

Rogan Ward / Reuters

Fishermen bring in the nets during the annual sardine run.

Here's a story about the sardine run and another about the hazard presented to swimmers by sharks feeding on the sardines.