Is a nail holding two pieces of wood together desirable or non desirable?

This is my opinion: I think two pieces of wood held together by nail is non desirable because I highly doubt that one nail can support enough unless the woods are shaped a certain way and is put together tightly that it won't go apart and has nail that supports it.

That is true! many fish species traveled to the u.s. because of it.

Ithink it’s around 500 million or something. kinda scary honestly but that’s just my opinion.