@RennederM to BecomeMe • 3 months agoPeriodical Cicadas Emerge Every 13 or 17 Years. How Do They Keep Track of Time?www.scientificamerican.comexternal-linkmessage-square3arrow-up111arrow-down11
arrow-up110arrow-down1external-linkPeriodical Cicadas Emerge Every 13 or 17 Years. How Do They Keep Track of Time?www.scientificamerican.com@RennederM to BecomeMe • 3 months agomessage-square3
minus-square@boolylink1•3 months agoThe article says that they count the annual cyclical changes in the composition of xylem sap that they consume underground, and that manipulating the trees in that way can trick the cicadas into coming out early.
minus-squareYer Malinkfedilink1•3 months agoThey also way they don’t really know how they count the cycles
The article says that they count the annual cyclical changes in the composition of xylem sap that they consume underground, and that manipulating the trees in that way can trick the cicadas into coming out early.
They also way they don’t really know how they count the cycles