Arachnophobes are in for a world of hurt.
.” Sometimes, names are derived from the places where the species are found, and may incorporate some local language, but for Agnarsson’s crawlers, “I felt like I needed to honor this movie in some way. So that’s what I did.”A. biglebowskiwere collected in Tanzanian rainforests by Danish researcher Nikolaj Scharff, who then made them available for Agnarsson to study as part of his graduate research.
To date, only about 50,000 spider species have been formally discovered and studied, though scientists estimate there are anywhere from 150,000 to 200,000 spider species worldwide. “Whenever I go into a tropical rainforest, about 70 percent of the spiders I see are new to science,” Agnarsson says. “It’s such an early age of discovery.”
Agnarsson says that these days, when trying to determine whether a spider species is a new discovery, scientists will simply test their DNA. When he named, it wasn’t so simple. He had to examine the shape of each centimeter-long spider—and in particular the spider’s genitalia—and compare it to all other known“We look at these tiny little structures and especially the male genitalia,” he says.
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