In 1996, the cicadas of Brood II (the “East Coast Brood”) swarmed the northeastern United States and then disappeared almost as quickly as they came, leaving only their eggs and molted exoskeletons behind. Once the eggs hatched, the new generation of cicada nymphs crawled underground, where they’ve spent the last 17 years biding their time and living off of tree roots.
 |
 |
via Mental Floss http://mentalfloss.com/article/49609/why-do-cicadas-spend-so-much-time-underground
No comments:
Post a Comment