Recently, we noted cicadas’ apparent predilection for the prime numbers of 13 and 17.*
Do we have a predilection for powers of ten?
* Too bad mosquitoes don’t share it. If we had all that time to prepare …
Incidentally, one argument against the Darwinian explanation for the cicada’s long prime-number hibernation (as a means of avoiding predators) is that so few life forms ever do that. You’d expect a strategy adopted for explicitly that purpose to be more common if it worked, because predators are almost universal.