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Jungle Shark

Jungle Shark

PG
Marine biologist Dr. Craig O' Connell and Andy Casagrande travel up the Serena River in the rainforests of Costa Rica to find out why young bull sharks swim up the river, and how they avoid the American crocodiles living there.
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  • Jungle Shark

    Jungle Shark

    Marine biologists travel up the Serena River in the rainforests of Costa Rica to find out why young bull sharks swim up the river.

    41m 7s

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