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MigraMar

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Tagging the Sharks That Commute Between Two Countries

Ocean Life

🇨🇷 Costa Rica

Hammerheads swim a 700-kilometre corridor between Cocos and the Galápagos twice a year; the tags proving it turned an invisible migration into a protected route.

1,519animalsIndividual animals tracked with satellite and acoustic tags
240ksquare kilometresArea of the Cocos-Galapagos Swimway
630ksquare kilometresRegional marine protected area, up from 156,000 km2 in 2010
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We research and write every entry ourselves, so there’s no self-serve editing — but corrections from people who know MigraMar first-hand are the best ones we get.

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