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In this January 24, 2015 photo, a chair sits in the snow, left behind by someone who kept watch for a delayed ship, on the Risopatron Base on Robert Island, part of the South Shetland Islands archipelago in Antarctica. Often, scientists find something other than what they were looking for. Last year researchers calculated that ice on the western side of the continent was melting faster than expected. Last month, scientists researching vital geology in that melting were looking half a mile under the ice in pitch dark and found a surprise: fish half a foot (15 centimeters) long and shrimp-like creatures. (Photo by Natacha Pisarenko/AP Photo)
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