Can it be possible that this planet has actually spawned such things; that human eyes can have truly seen, as objective flesh, what man has hitherto known only in febrile fantasy and tenuous legend?

And yet I saw them in a limitless stream – flopping, hopping, croaking, bleating – surging inhumanly through the spectral moonlight in a grotesque, malignant saraband of fantastic nightmare.

H.P. Lovecraft