Allomaternal nursing by a nulliparous pregnant female just before first parturition in free-ranging golden sub-nosed monkeys
HU Qinglang, WU Yue, YAO Hui, YANG Wanji, YU Yang, XIANG Zuofu
ACTA THERIOLOGICA SINICA . 2022, (3): 345 -348 .  DOI: 10.16829/j.slxb.150582