南非沙丁鱼大迁徙：海洋盛宴
Every year, between May and July, something amazing happens near South Africa. Billions of small, silver fish travel north. These fish are called sardines. Their long swim is the Sardine Run.
Sardines are tiny sea fish. They love cool water. In winter, the ocean water gets colder. The fish follow the cold water along the coast. They swim very close together for safety.
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