His behavior and appearance grew increasingly strange.

VOA: special.2009.06.27

But anyway, he did a famous experiment with pigeons which, in the 1940s -1948 -in which he induced strange behavior patterns in pigeons by the following simple experiment.

他做过一个著名的鸽子实验,在19世纪40年代,是1948年,他用一个简单的实验,诱发了鸽子的强烈行为

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I mean, his behavior at work is very strange.

我是说，他在工作时的表现很怪异。

Is there 实战 - SpeakingMax英语口语达人

His behavior and appearance became increasingly strange.

VOA: special.2009.07.05