Why do spiders bite themselves in half when they are placed in a jar?

star_gazer

I doubt all spiders do this, the few that do are probably terrified. Jul 27 07, 10:33 AM

delboy22

There are many animals in nature that will "commit suicide" when afraid or injured, a spider will bite itself, as a wasp will sting itself. Jul 27 07, 6:52 PM

McGruff

I searched for some time this afternoon and found no reference whatsoever that spiders bite themselves. Jul 27 07, 7:55 PM