[Paisan]

The answer is actually much simpler. Dinosaurs used the feathers on the ends of their tales as a simple domestic “tool”. The tail would be whisked rapidly in a brisk “back and forth” manner as a means of removing dust and other particulate from their furniture, mantle pieces and window sills, etc.

Prove me wrong...

[Winstons Julia]

I wouldn’t presume to do that. There was no TV back then ... hence no Oxyclean or Swiffers. It makes complete sense that dinosaurs would use what they had.

A prehistoric feather-duster, if you will.

I think you should contact the team that did the study about that.

[Salamander]

Primitive hominids did use animals as domestic cleaning tools...close enough?

[anybody else ever wonder how she emptied that thing?]