![](http://www.alamy.com/thumbs/6/B1DECB7C-5621-4FD3-AC06-93165DE25CC7/AE2RRP.jpg)
17 year Cicada Magicicada septendecim Cook County Illinois 2007 Brood XIII
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Photo credit: © Todd Bannor / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: 17, 17-year, adaptation, animal, arthropod, biology, breed, brood, cicada, cicadas, cycle, entomology, evolution, habitat, insect, leaf, leaves, life, magicicada, nature, number, periodic, periodical, prey, prime, wing, xiii, year, zoology