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In web-weaving species, precise patterns of vibrations in the web are a major part of the rituals, while patterns of touches on the female's body are important in many spiders that hunt actively, and may "hypnotize" the female. Gestures and dances by the male are important for jumping spiders, which have excellent eyesight. If courtship is ...
Spiders have been used in studies which indicate that invertebrates may experience pain. Under natural conditions, orb-weaving spiders (Argiope spp.) undergo autotomy (self-amputation) if they are stung in a leg by wasps or bees. Under experimental conditions, when spiders were injected in the leg with bee or wasp venom, they shed this appendage.
In primitive spiders, such as the Mesothelae and the Mygalomorphae, two pairs of coxal glands open onto the posterior side of the first and third coxae. They release a fluid only during feeding and play an important role in ion and water balance. [16] Digestive fluids dissolve the prey's internal tissues.
Spiders are important members of our backyard ecosystems. They prey upon pest species and, in turn, are food for many predators, even other spiders. And don’t forget, if you find one in your ...
The daddy long legs spiders (Pholcus phalangioides) have very small bodies but long and thin legs.They like constant temperatures which is why they are commonly found in homes, garages and sheds ...
Spiders are powerful reminders that we all are spiritual architects, continually (re)constructing the complex patterns of our lives while interconnected in the vast web of existence.
As with spiders in general, males of almost any species can sometimes be found inside homes and buildings as they wander in search for females during the autumn. Wolf spiders play an important role in natural population control of insects and are often considered "beneficial bugs" due to their predation of pest species within farms and gardens. [5]
A number of spiders can cause spider bites that are medically important. Almost all spiders produce venom but only a few are able to cause significant harm to humans. [1] Two medically important spider genera have a worldwide distribution—Latrodectus and Loxosceles. Others have a limited distribution.