Скачать или смотреть Explained The cicadas are coming out after 17 years, here’s why they take

By: Explained Desk | New Delhi |Updated: May 24, 2020 11:07:33 amCicadas are insects that spend most of their lives underground and emerge from the soil mainly to mate. (AP/File)A brood of periodical cicadas, noisy insects that breed underground for as long as 13-17 years are expected to emerge into some states on the east coast of the US this year. This year, the grouping dubbed Brood IX will emerge after spending 17 years underground, into states including Southwest Virginia, parts of North Carolina and West Virginia. The emergence of over 1.5 million cicadas per acre is expected. According to Virginia Tech, people living in these areas will experience a “unique natural” phenomenon that has not occurred in most of the area since 2003. Don’t miss from Explained | How the coronavirus pandemic may change work cultureWhat are cicadas? Cicadas are insects that spend most of their lives underground and emerge from the soil mainly to mate. Once out of the ground, their life span is fairly short, somewhere between two-four weeks. Doug Pfeiffer, a Fruit Entomologist at Virginia Tech, writes in his blog that there will be major outbreaks of periodical cicadas in 2020 and 2021. There are three species of 17-year cicadas and three species of 13-year cicadas. In the blog, Pfeiffer goes on to explain that originally 30 broods of periodical cicadas were defined, mostly separated by geography and the time they emerge from the ground. At present, there are about 15 active broods of these cicadas as some have gone extinct. The insects are found in the America’s as well as New Zealand and Australia.

Explained The cicadas are coming out after 17 years, here’s why they take:    • Explained The cicadas are coming out after...