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

红翅黑鹂有时黄莺附近筑巢，它们没有发出指未警报叫声。

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

人类婴儿也会做同样的。种努力被称为“参照性交流”。

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

种与语言的关系被称为“指代理解”，狗身上尚未得到证。

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

证明，那一种复杂的认知现象，称为指称交流。

But whether dogs gain the ability to understand referential language during that evolution remains unclear.

但狗进化过程中获得了理解指代性语言的能力，目前仍不清楚。

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，但际上它们并未向人们寻求帮助。

And those tasks seem to be self referential.

些任务似乎自我参照的。

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

项研究支持了“语言进化论”的观点，即“际上，指代理解并不一定人类独有的”，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.

种努力被称为“参考交流” 。 因此，如果狗有种行为，你可能会期望它们的近亲：狼也有同样的行为。

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.

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，就像妈妈语帮助人类婴儿学会语言一样。

It should also be noted that in languages like English, a pronoun is not always referential, but might be used only due to the requirement of grammar.

还应注意，像英语样的语言中，代词并不总指称性的，可能仅因语法要求而使用。

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.

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，但些动物通常都经过严格训练才做到的。