Temporary paralyze and zombie like spider, a cruel parasitic wasps can make them all.
The spider Cyclosa argenteoalba becomes a zombie slave to the wasp Reclinervellus nielseni after it deposits their eggs. It force spiders to build webs for them to be safe as they transition into adulthood and after kills the.
Researcher conducted experiment to find out the reason of such activity between spider and the parasitic wasps. They found out that spiders tended to build a particular kind of web, one that was quite different from the webs created by parasitoid-free spiders and parasitic nests were reinforced with extra silk, requiring more force to break apart.
Japanese scientist Keizo Takasuka and colleagues, shown that spider’s cocoon-bearing web, within which the wasp larva develops, is not dissimilar in structure to its own “resting web,” which the arachnid crafts for itself to shelter in before it molts, or sheds its skin to become larger. In the study published in The Journal of Experimental Biology, August 5.
Evolutionary biologist at the Smithsonian Tropical Research Institute and the University of Costa Rica William Eberhard, studied this parasitism in the past, saying The study “fills in the details” of what’s going on between the wasp larvae and their spider hosts. The big question that remains is how exactly the wasps turn the spiders into zombies in the first place. He suspects—in line with the researchers—the larvae inject molting chemicals into the spiders’ abdomens, where they are carried to the brain and nervous system and “flip certain switches.”
Spider probably experienced temporary paralysis caused by the parasitic wasps and mechanisms are still mystery. Researchers suspect that the wasp larvae inject a compound into their spider victim. IMAGE/news.sciencemag.org