I realise that I have an unusual fascination with reptiles and therefore have amassed an equally unusual repository of trivia and esoterica about them. But I'm frequently baffled by things like that little remark in Raskin's book. Of course, he was a computer UI expert and not a herpetologist*, but surely that's the sort of thing an editor would catch? Books still had editors in 2000.
In my frame of reference, it's "common knowledge" that chameleons are the ones with the independently moving eyes, and geckos are the ones that walk on walls.
Am I grossly overestimating common knowledge?
*) I am also not a herpetologist.