Why can't bugs sense danger (like avoid being stepped on)?

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Thrylix
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Why can't bugs sense danger (like avoid being stepped on)?

Post by Thrylix » Mon Aug 25, 2014 12:48 pm

I'm 21 years old, was in class two days ago... saw a spider under my desk crawling into the aisle. I was bored so before it got far away, I leaned back in my chair, slid my foot into the aisle, and crunched the little guy as inconspicuously as I could.

I tilted my foot on its side to jokingly show the flattened little guy to my friend sitting across, who sort of snickered when we saw that he was stuck to some mud/grass on my running shoe and half alive. As I was doing this I wondered what motivated the bug to get so close.

Now, I've been stepping on bugs my whole life. I have to wonder, why crawl next to a giant sneaker unless you were looking to be crushed! Seems hard not to notice that a huge white rubber thing which smashes might be dangerous.. the smell of my feet alone should have deterred him, hah.

Why do bugs act in that way?

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JackBean
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Post by JackBean » Mon Aug 25, 2014 6:57 pm

Maybe because animals usually do not step on them on purpose?
http://www.biolib.cz/en/main/

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