Abstract
When Shannon B. Olsson first moved to Bangalore, India, to start her lab at the National Centre for Biological Sciences at the Tata Institute of Fundamental Research in 2014, she was struck by all the curious foods in the city’s markets. “There are all these unfamiliar gourds—bitter gourds, elephant gourds—that I didn’t know what to do with,” she says. Having lived and worked on three continents, Olsson had certainly sussed out sources of food in novel environments before. But it got her thinking about the insects she studies—hoverflies. This family of insects lives in a wide range of different habitats, including tropical, alpine, and subarctic regions. How do they know which flowers are food, when flowers look and smell so different in areas like India and Sweden and the U.S.? Karin Nordstrom, a neuroscientist at Flinders University who studies how insects visually perceive their world while moving—seeing on the fly,
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