Lilla Magyari, also a co-lead writer of the study, said that while other animals have been shown to have some degree of referential understanding of language, those animals have usually been highly trained to do so.

这项研究的共同第一作者利拉·马格亚里（Lilla Magyari）说，虽然已经证明其他动物对语言有一定程度的指代理解能力，但这些动物通常都是经过严格训练才做到的。