Researchers Collect Breath Sample (IMAGE)
Caption
University of Wyoming researchers Hank Harlow, left, and John Whiteman collect a breath sample from a polar bear on pack ice in October 2009.
Credit
[Credit: Daniel Cox]
Usage Restrictions
Please cite the owner of the material when publishing. This material may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact <em>Science</em> for permission.
License
Licensed content