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  Tulane biologist Keith Clay When biologist Keith Clay came to Tulane University in July 2018, he brought with him an impressive knowledge of periodical cicadas, the noisy bug that has emerged by the billions in states east of the Mississippi after 17 years underground. Clay, professor and chair of the Tulane Department of Ecology and Evolutionary Biology, conducted a major a research project on cicadas from 2002 to 2007 while on the faculty of Indiana University. It was during that time in 2004 that the previous emergence of the so-called Brood X species occurred and now, 17 years later, it is happening again. “The emergence of 17-year periodical cicadas is one of the most unusual biological phenomena on Earth, and occurs almost entirely within the eastern United States and nowhere else in the world,” said Clay, who is also a distinguished professor of biology emeritus at Indiana University.

Indiana universityUnited statesKeith clayTulane department of ecologyNational science foundationProfessor keith clayTulane professor keith clayTulane universityTulane departmentEvolutionary biologyMemorial dayஇந்தியானா பல்கலைக்கழகம்ஒன்றுபட்டது மாநிலங்களில்கேய்ட் களிமண்துலேன் துறை ஆஃப் சூழலியல்தேசிய அறிவியல் அடித்தளம்