Page 21 - கலிஃபோர்னியா கலைக்கழகம் ஆஃப் அறிவியல் News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Brood X has emerged in full force. Now, when will the cicadas go away? CNET 2 hrs ago Leslie Katz © Provided by CNET Brood X cicadas in Haverford, Pennsylvania, on May 25. Jim Watson/Getty Images Now that Brood X cicadas have tunneled out from their subterranean homes across the Eastern US, you might wonder when they ll be leaving. Here s everything you need to know about the little critters with black bodies and bold red eyes now making their inescapable appearance.    What is Brood X?  In case you re new to Brood X, it s a group of periodical cicadas, which are different than annual cicadas. They spend almost their whole lives a foot or two underground, living on sap from tree roots. Then, in the spring of their 13th or 17th year, depending on the type, mature cicada nymphs emerge for a brief adult stage, synchronously and in huge numbers. They mate and then die, and their newly hatched offspring drop to the ground and burrow in for the n

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