<prompt> Translate the following text to EnglishHakuna kofia ya chuma yenye pembe iliyopatikana, lakini ugunduzi huo unachanganya - labda unabadilisha - nadharia kuhusu makazi ya Amerika Kaskazini.  <response>: No horned helmet was found, but the discovery is complicating--perhaps overturning--theories about the settlement of North America. 