Elephants know when they need a helping trunk in a...

Proceedings of the National Academy of Sciences 2011 / 03 Vol. 108; Iss. 12

Elephants know when they need a helping trunk in a cooperative task

Joshua M. Plotnik, Richard Lair, Wirot Suphachoksahakun and Frans B. M. de Waal
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Volume:
108
Language:
english
Journal:
Proceedings of the National Academy of Sciences of the United States of America
DOI:
10.2307/41125278
Date:
March, 2011
File:
PDF, 1.36 MB
english, 2011
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