A prepared, spread wing from a bar-headed goose (Anser indicus); part of the Cowan Tetrapod Collection at the Beaty Biodiversity Museum in Vancouver, BC, Canada. Markers indicate the locations of ...
Bar-headed geese Anser indicus on Terkhiin Tsagaan Lake, Mongolia. This material relates to papers that appeared in the January 16, 2015 issue of Science, published by AAAS. The paper, Charles M.
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