African bullfrog, 非洲牛蛙

An African Bullfrog is placed on a weighing scale during the London Zoo's annual weigh-in in London.
August 21, 2013 http://www.voanews.com/media/photogallery/1734235.html

Suzanne Plunkett /Reuters
An African bullfrog is weighed on a scale during a photocall to publicize the annual measuring of all the animals at the London Zoo.
FT Photo Diary | A blog from the Financial Times http://blogs.ft.com/photo-diary/

African bullfrog - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/African_bullfrog
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