This is why cicadas are so noisy:
“My brood passes a lot of knowledge from generation to generation. For instance, we know that between generations, trees add exactly 13 rings.
“I don’t know who you are, but your claim that trees can add 17 rings between generations is preposterous.
“Next you’ll be suggesting that there are other, parallel, broods that my brood can never meet because they breed ‘between’ our generations. Bug off!”
Consider this a friendly, local pub. Make yourself at home, bring your friends, have a good time! Meet new people, have a laugh, enjoy the ambience, and the Oxford commas.