A spooky outfit change for October. For certain cicadas, 13 is a lucky number as the periodical insect species take 13 or 17 years to complete their lifecycle. They spend a majority of their lives underground before emerging to begin their 120-decibel chirping and lay eggs for a new generation. Thank you for 13 Million followers! #cicada #bugsofinstagram #entamology #naturelovers #creature_feature #spookyseason