Azure-winged magpies solve string-pulling tasks by partial understanding of the physical cognition

Wang, L; Luo, YC; Wang, X; Maierdiyali, A; Chang, H; Li, ZQ

Li, ZQ (reprint author), Nanjing Univ, Sch Life Sci, Nanjing, Jiangsu, Peoples R China.

CURRENT ZOOLOGY, 2019; 65 (4): 385