That's just photoshopped. Not even well-done. It's obvious those are HUMAN EARS. Nice try, OP.

This photo is from like 1990, so not surprising there were no translation apps. Or apps.

This sign (or signs like this) is at an observation point at one of the ends of an airport landing strip. Context is EVERYTHING.

Because they don't TEACH it in school.

It's from ancient history.