Human infants do the same thing. Such efforts are called " referential communication."

类婴做同样的事情。这种努力被称为“参照性交流”。

That, it turns out, is a sophisticated cognitive phenomenon called referential communication.

事实证明，那是一种复杂的认知现象，称为指称交流。

Red-winged blackbirds, which sometimes nest near warblers, do not produce referential alarm calls.

红翅黑鹂有时在黄莺附近筑，它们没有发出指警报叫声。

This is a relationship with language called referential understanding that has been unproven in dogs.

这种与语言的关系被称为“指代理解”，在狗身上尚得到证实。

While the pigs revealed that they were capable of referential communication, they didn't actually turn to people for help.

虽然猪显示出它们能够进行参照性交流，但实际上它们并们寻求帮助。

And those tasks seem to be self referential.

这些任务似乎是自我参照的。

The study supports ideas about " language evolution which actually say that referential understanding is not necessarily unique to humans, " added Magyari.

这项研究支持了“语言进化论”的观点，即“实际上，指代理解并不一定是类独有的”，马格亚里补充说。

Such efforts are called " referential communication." So if dogs behave this way, you might expect the same from their close relatives: wolves.

这种努力被称为“参考交流” 。 因此，如果狗有这种行为，你可能期望它们的近亲：狼有同样的行为。

This makes the bat babies babble back, and it might help them learn specific words or referential sounds the same way that motherese helps human babies acquire language.

这让蝙蝠宝宝咿咿呀呀地回话，帮助它们学习特定单词或指代声音，就像妈妈语帮助类婴学语言一样。

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。