@lowqualityfacts Weird, I can't find it written that way on google or yandex or yahoo, but I can find people referencing such a joke or making the joke themselves.

Amazing coincidence that it decided to write it that way to you though, or maybe not, when I tried the same prompt the first result was "Penguins can fly, but only in their dreams.". And the 8th reroll was "Penguins can fly, but only when nobody is looking."