Editing 2263: Cicadas
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==Trivia== | ==Trivia== | ||
β | The widely-accepted scientific explanation for the long and seemingly arbitrary 17-year lifecycle is that seventeen is a {{w|prime number}} - it's believed that this is an evolutionary adaptation against lifecycles of competitors taking easy advantage of the cicada as a food source (if a predator) or emerging early to | + | The widely-accepted scientific explanation for the long and seemingly arbitrary 17-year lifecycle is that seventeen is a {{w|prime number}} - it's believed that this is an evolutionary adaptation against lifecycles of competitors taking easy advantage of the cicada as a food source (if a predator) or emerging early to dominating their shared food source (if a fellow feeder), since 17 years cannot be divided by any whole number of years other than itself and 1. |
A 16-year cicada might find a creature with an 8-year, 4-year, or [[1602:_Linguistics_Club|biennial]] cycle could profit from it in a 'clash' of expectations, but only a cycle that is a multiple of 17 (by an identical accident of evolution, that must also match the 'beat' years of the Cicada to be useful) would affect the presumed ancestors of the comic-strip breed. Predators often work to yearly cycles of plenty and scarcity of food or can survive a low number of famine years between the better ones, but if they have less than one year of 'bounty' for every decade or so of 'normal' feeding then they cannot build up the numbers needed to threaten such prey that plays the long-game. | A 16-year cicada might find a creature with an 8-year, 4-year, or [[1602:_Linguistics_Club|biennial]] cycle could profit from it in a 'clash' of expectations, but only a cycle that is a multiple of 17 (by an identical accident of evolution, that must also match the 'beat' years of the Cicada to be useful) would affect the presumed ancestors of the comic-strip breed. Predators often work to yearly cycles of plenty and scarcity of food or can survive a low number of famine years between the better ones, but if they have less than one year of 'bounty' for every decade or so of 'normal' feeding then they cannot build up the numbers needed to threaten such prey that plays the long-game. |