Paper-clip question

[Abby&Buddy'sMom]

I know I have been on this site for a long time, but I have never thought before to ask, What are this meaning of the little paper-clip symbols located by some of the message threads? :confused: Thanks :)

[jenluckenbach]

It means that there is an attachment in the thread.

[catmandu]

Oh!
We didnt know either!
The Found Cats.

[Abby&Buddy'sMom]

Thank You :) now I know :)