What spawned the sardine run? How the ‘greatest shoal on Earth’ ...

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What spawned the sardine run? How the ‘greatest shoal on Earth’ works

Scientists use genomics to understand one of the world’s biggest migration events

Senior reporter

Scientists believe the sardine run may be a relic of spawning behaviour dating back thousands of years to the glacial period.

They have unpacked, using genomics, how one of the world’s biggest migration events works.

The event, referred to the “greatest shoal on Earth”, involves the movement of hundreds of millions of sardines from their cool-temperate core range into the warmer subtropical waters of the Indian Ocean, on SA’s east coast...

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