Natural History Society of Maryland
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Natural History Society of Maryland

Daddy Long Legs: The Art and Natural History of the Marvelously Misunderstood Opiliones

  • 02 Dec 2021
  • 7:00 PM - 8:00 PM
  • Online via Zoom

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From their common names to their bite, the arachnid order Opiliones, also known as “daddy-longlegs” or “harvestmen,” have been historically misunderstood. Opiliones are really common in eastern North America– many people have seen huge clusters of them in the eaves of sheds or outhouses in the summertime. However, Opiliones are often feared because of mythsrelated to their resemblance to spiders. Therefore it is important to teach the public that these organisms are not dangerous to humans at all, and are in fact interesting creatures that are beneficial to have in gardens and landscapes. I will dispel common myths about the wonderfully diverse Opiliones of North America by discussing their physiology, behavior, and treatment throughout history. From this talk, participants will learn 1) Opiliones are different from spiders in many key ways, namely that Opiliones lack venom and silk, 2) Opiliones have reproductive behavior that is rare and unique among arthropods, 3) Cultures around the world actually view Opiliones positively.

Bio: Dr. Mercedes Burns is an assistant professor of evolutionary biology at the University of Maryland, Baltimore County. Her research focuses on the evolution of sexual reproduction and behavior, especially in arthropods.

Macro of a orange harvestman (Gagrellinae, likely Jussara sp.) found in the atlantic forest (tropical rainforest) of Parque do Zizo, private reserve in São Paulo, Brazil.

The Natural History Society of Maryland is a 501(c)(3) non-profit corporation and contributions are tax-deductible.

The mission of the Natural History Society of Maryland is to foster stewardship of Maryland’s natural heritage by conserving its natural history collections, educating its citizenry, and inspiring its youth to pursue careers in the natural sciences.


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