![]() ![]() Here are some clever things spiders manage to do in order to survive: They have a super-powered sense. Here are some of the ways spiders catch their prey without becoming food. The stealthy abilities spiders have acquired to become the most fearsome organisms on eight legs are far more than that. Spiders can weave sophisticated webs and poison their prey, as you may know. Before Spiders Curl Up Legs and Die, They Fight for Survival:īefore we explore why these spiders curl up as they die, let us first discuss how such a small creature can survive in a world of predators. Only the flexors remain, which explains why spiders curl up when they die. Thus, it can no longer act as an extensor. So, why do spiders curl up their legs, especially when they die? Logic dictates that blood pressure governs leg straightening. In actuality, blood and blood pressure to the extensor muscles’ task. ![]() The blood flows directly from their hearts to their legs, straightening them. The hydraulic system means that spiders employ their blood pressure. The catch is that spiders lack extensor muscles. The fangs spew poison, while the spinnerets use spiders to create their web.Īnyone who has studied biology knows that the legs have flexor muscles that help contract the legs and extensor muscles that help straighten the legs. Spiders are arthropods with eight legs, fangs, and spinnerets. To address the question, we must first learn about spider anatomy and biology. So do you wonder why spiders curl up when they die? Getting to Know Spiders: Ever killed a spider or seen a dead one lying around? Aside from the fact that spiders use the tactics of playing dead to trick predators or, to avoid sexual cannibalism, and others to attract (or trick) female spiders to mate, the poor spider could probably be dead.
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