![Biologists Rhian Waller and Tim Shank check out a sea urchin just up from the seafloor. They can look for a while, but the biologists need to move their samples rather quickly into an appropriate holding tank to preserve them for further investigation.](6.jpg)
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Biologists Rhian Waller and Tim Shank check out
a sea urchin just up from the seafloor. They can look for a while, but
the biologists need to move their samples rather quickly into an appropriate
holding tank to preserve them for further investigation.
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