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

✍ Scribed by Plotnik, Joshua M. (author);Lair, Richard (author);Suphachoksahakun, Wirot (author);De Waal, Frans B.M. (author)

• Book ID: 121738196
• Publisher: National Academy of Sciences
• Year: 2011
• Tongue: English
• Weight: 441 KB
• Volume: 108
• Category: Article
• ISSN: 0027-8424
• DOI: 10.1073/pnas.1101765108