And really are interested in human eyes because of that.因此他们对于我们的眼睛更感兴趣

interest in:对 ... 有兴趣

She lost interest in living and just pined away.

她已了无生趣，日渐憔悴。

I have no interest in pop music.

我对流行音乐不感兴趣。

they develop special skills in interacting with humans,他们发展了这一特殊技能就是因为与人类的互动需要

interact with:与 ... 相互作用

Interact with us to unveil your internal world.

快与我们互动，解读您内心的密码。

How does he interact with his kids?

他和孩子如何交流呢?

seem to intelligently respond to human gestures.似乎也能够聪明地回应人类的手势

respond to:响应； 对 ... 起反应

He resolved to respond to the call of the Party.

他决心响应党的号召。

That is, people respond to incentives.

那就是，人们对刺激性因素的响应。