When a spider loses a leg, it usually breaks at a "breakpoint" (a joint that contains muscles that contract to minimize blood loss), so she never bleeds and dies. Even if the leg is amputated before the breakpoint, the spider will amputate her leg, but only after additional blood loss. This is fatal.
What happens if a spider breaks his leg?
When a spider loses its leg, it usually loses its leg at a given "breakpoint" usually at a joint close to the body. At these points, there are special muscles that are clamped to prevent the spider from losing too much blood. This process is called "autotomy" and is perfectly normal. 2015
Can spiders survive on seven legs?
Spiders can live without one, two, or even three legs. It can make their lives more difficult, but they will be okay. If at least one molt remains in the spider's life (molting means molting the exoskeleton because it grows from the exoskeleton and has new molting underneath), its legs are regrown. You can.
Can spiders take off their legs?
Yes, that's right. In fact, many spiders have the option of dropping their feet if they feel their feet are irreversibly stuck or if a predator grabs them. Basically, a spider's leg is a large tube with an open space to fill some muscles and blood lymph (a spider stretches its legs hydraulically).
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