LiveScience: UC research shows spider butts look like faces
The spider's abdomen looks like a wasp's or mantis' head. Researchers say it fools computers, too.
LiveScience examined University of Cincinnati biology research into why some jumping spiders use biomimicry in mating dances.
UC biology student Olivia Harris observed that the raised abdomens of peacock jumping spiders during their courting dance looked to her like the angular head and eyes of predators that eat spiders — wasps and preying mantises.
But to determine if what she was seeing was just her imagination, she enlisted the help of artificial intelligence to see if it was fooled, too.
She used images of peacock jumping spiders taken by internationally renowned photographer and Australian scientist Jurgen Otto, whose stunning photos and videos of the colorful spiders have appeared in National Geographic and Smithsonian.
Harris asked artificial intelligence to tell the spiders apart from images of preying mantises, wasps and other insects. The spider abdomens fooled the computer about 5 percent of the time.
"One of the species is actually named Maratus vespa," she said. "Vespa is Latin for wasp. So we're not the first scientists to see the faces of invertebrate predators in these little spiders."
Spiders are notoriously cannibalistic. Courting males walk a fine line between seducing females and ending up as a snack.
Harris said mimicking a predator might give females just enough pause to halt a deadly ambush so the male can begin his courting display.
"Our hypothesis is the males are trying to exploit the females' anti-predator response of freezing when scared. This would help him capture the female's attention without immediately becoming prey himself," Harris said.
Harris presented her findings at the Society of Integrative and Comparative Biology conference this month.
Featured image at top: A jumping spider's raised abdomen looks so much like the angular head of a preying mantis or wasp that it fooled a computer some of the time. Photo/Jurgen Otto/www.peacockspider.org
Next Lives Here
The University of Cincinnati is classified as a Research 1 institution by the Carnegie Commission and is ranked in the National Science Foundation's Top-35 public research universities. UC's graduate students and faculty investigate problems and innovate solutions with real-world impact. Next Lives Here.
Become a Bearcat
- Apply online or get more information about undergraduate enrollment by calling 513-556-1100.
- Learn more about UC's many undergraduate and graduate programs.
Related Stories
From literature to AI: UC grad shares career path to success
April 23, 2024
Before Katie Trauth Taylor worked with international organizations like NASA, Boeing and Hershey, and before receiving accolades for her work in the generative AI space, she was in a much different industry: English and literature.
WVXU: Why is part of Green Township called Dent?
April 23, 2024
UC College of Arts and Sciences professor tells WVXU that Ohio's glacial past might explain how Dent got its name.
Local 12: Local universities open Taylor Swift courses
April 22, 2024
In the lead up to the release of Taylor Swift's new album, "The Tortured Poets Department," several media outlets covered classes offered at UC that focus on the singer's music and poetry. UC offers three classes that cover the pop icon: a general music course at CCM and two classes at A&S.