Dogs are able to tell how big another dog is just by listening to its growl, a new study has found.

一项新研究发现：狗能够通过狗叫声来辨别出另一只狗的大小。

youdao

Dogs are able to tell how big another dog is just by listening to its growl, a new study has found.

一项新研究发现：狗能够通过狗叫声来辨别出另一只狗的大小。

youdao