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01 |
Upper Intertidal Zone-Animal-Littorina saxatilis
or rough periwinkle |
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02 |
Upper Intertidal Zone-Animal-Dissected L. saxatilis |
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03 |
Upper Intertidal Zone-Animal-L. saxatilis emerging from shell |
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04 |
Upper Intertidal Zone-Animal-color variations of L. saxatilis |
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05 |
Upper Intertidal Zone-Animal-diagram of periwinkle migration |
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