Snowy Sheathbill - This image is of a snowy sheathbill at Anvers Island, Antarctica. Snowy sheathbills are scavengers, acquiring much of their nourishment by stealing food already caught by penguins and shags or by eating human refuse.
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This photo, taken on April 21, 2010, shows giant icebergs near Palmer Station in Antarctica. Located on Anvers Island, Palmer Station is operated by the National Science Foundation's U.S. Antarctic Program.At Palmer Station, scientists can conduct research in a variety of fields, including marine biology, glaciology, geophysics and astrophysics. [Related: The 7 Most Extreme Jobs in Science]