Spider version of Bigfoot discovered in North American caves
Washington, August 18 (ANI): In a new study, researchers have tried to study the evolutionary and conservation significance of a newly discovered Bigfoot spider.
The forests of the coastal regions from California to British Columbia are renowned for their unique and ancient animals and plants, such as coast redwoods, tailed frogs, mountain beavers and the legendary Bigfoot - also known as Sasquatch.
While Bigfoot is probably just fiction, a huge, newly discovered spider is very real. Trogloraptor or "cave robber" is named for its cave home and spectacular, elongate claws.
It is a spider so evolutionarily special that it represents not only a new genus and species, but also a new family - Trogloraptoridae.
Even for the species-rich insects and arachnids, to discover a new, previously unknown family is an historic moment.
A team of citizen scientists from the Western Cave Conservancy and arachnologists from the California Academy of Sciences found these spiders living in caves in southwest Oregon.
Colleagues from San Diego State University found more in old-growth redwood forests.
Charles Griswold, Curator of Arachnology, Joel Ledford, postdoctoral researcher, and Tracy Audisio, graduate student, all at the California Academy of Sciences, collected, analyzed, and described the new family.
Audisio's participation was supported by the Harriet Exline Frizzell Memorial Fund and by the Summer Systematics Institute at the Academy, which is funded by the National Science Foundation.
Trogloraptor hangs beneath rudimentary webs on cave ceilings. It is about four centimeters wide when its legs are extended-larger than the size of a half-dollar coin.
Their extraordinary, raptorial claws suggest that they are fierce, specialized predators, but their prey and attack behaviour remain unknown.
The anatomy of Trogloraptor forces arachnologists to revise their understanding of spider evolution.
Strong evidence suggests that Trogloraptor is a close relative of goblin spiders but Trogloraptor possesses a mosaic of ancient, widespread features and evolutionary novelties.
The true distribution of Trogloraptor remains unknown - that such a relatively large, peculiar animal could elude discovery until 2012 suggests that more may be lurking in the forests and caves of western North America.
The study has been published in the journal Zookeys. (ANI)
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