1. Gigantic channel-clinging crabs explore reef under cover of darkness

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  2. Lake comes alive with bizarre tiny creatures at night

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  3. Nosy sea turtle demands to see what scuba divers are looking at in the coral

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  4. Beautiful sea turtle works hard to get its meal in the crevice

    Beautiful sea turtle works hard to get its meal in the crevice

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  5. Royal blue tangs have a "battle royale" on the reef

    Royal blue tangs have a "battle royale" on the reef

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  6. Midnight snorkelers capture incredible salamander migration

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  7. Researchers get much closer than expected with hungry sharks in Papua New Guinea

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  8. Tiny beautiful creature makes its way along Pacific Ocean floor

    Tiny beautiful creature makes its way along Pacific Ocean floor

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  9. Spiny sea cucumber looks like an underwater alien creature

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  10. Scuba diver has thrilling encounter with endangered sea turtle

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