閱讀難度：

Dogs can "catch" yawns from humans, the Daily Mail reported.

A study found that nearly half of all dogs yawned when played a recording of a human being making such a noise.

But when the yawn played belonged to their owners, the canines were five times more likely than if the voice belonged to a stranger.

（點擊《每日郵報》查看原文）

狗打呵欠因被主人傳染

???????據(jù)英國《每日郵報》報道，狗能夠被人“傳染”打呵欠。

???????研究稱，近一半的狗在播放人類打呵欠錄音時，也會被傳染打呵欠。

???????但是，狗被主人傳染打呵欠的幾率是狗被陌生人傳染打呵欠的幾率的5倍。

(China.org.cn May 14, 2012)