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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
Short and inexpensive
With the center spinning orb and static outer ring
and providing good eating habits
helping them stay relaxed in stimulating environments
or Silicone
Karen Pryor on Behaviour: Essays & Research offers Short and inexpensiveKaren Pryor's classic collection of articles, essays, and research papers on training, learning, and behaviorfrom underwater studies of wild dolphin schools to a witty analysis of New York City weather. A great favorite of Pryor's personal fans, with lots of gems for the serious trainer or behaviorist too.
US$ 171.38
US$ 1235.61
US$ 176.32
