(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Nicholas Green, Kennesaw State University (THE CONVERSATION) Advertisement Article ...

There are about 40 kinds of cats out there – like me. There’s only one kind of human on Earth now. But there are more than a million kinds of insects. That’s just the insect species we know about.

Right now, there’s a fly walking on the window in my office. I asked my friend Rich Zack how it does that. He’s an insect scientist at Washington State University. It turns out my window isn’t as ...